Home / 123,091,836.96-168,977,226.84-105,657,915.36

Finding the Fourth Proportional to 123,091,836.96, 168,977,226.84 and 105,657,915.36

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Solution

The fourth proportional to 123,091,836.96, 168,977,226.84 and 105,657,915.36 is: 145,044,399.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,091,836.96 : 168,977,226.84 = 105,657,915.36 : x
  2. Step 2: Convert to fraction form
    123,091,836.96/168,977,226.84 = 105,657,915.36/x
  3. Step 3: Cross multiply
    123,091,836.96x = 168,977,226.84 × 105,657,915.36
  4. Step 4: Simplify right side
    123,091,836.96x = 17,853,781,531,228,240
  5. Step 5: Solve for x
    x = 17,853,781,531,228,240/123,091,836.96
  6. Step 6: Final answer
    x = 145,044,399.14

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.