Home / 103,237.84-142,465.97-57,915.00

Finding the Fourth Proportional to 103,237.84, 142,465.97 and 57,915.00

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Solution

The fourth proportional to 103,237.84, 142,465.97 and 57,915.00 is: 79,921.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,237.84 : 142,465.97 = 57,915.00 : x
  2. Step 2: Convert to fraction form
    103,237.84/142,465.97 = 57,915.00/x
  3. Step 3: Cross multiply
    103,237.84x = 142,465.97 × 57,915.00
  4. Step 4: Simplify right side
    103,237.84x = 8,250,915,940.22
  5. Step 5: Solve for x
    x = 8,250,915,940.22/103,237.84
  6. Step 6: Final answer
    x = 79,921.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.