Home / 113,761,877.20-170,642,815.80-112,628,136.40

Finding the Fourth Proportional to 113,761,877.20, 170,642,815.80 and 112,628,136.40

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Solution

The fourth proportional to 113,761,877.20, 170,642,815.80 and 112,628,136.40 is: 168,942,204.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,761,877.20 : 170,642,815.80 = 112,628,136.40 : x
  2. Step 2: Convert to fraction form
    113,761,877.20/170,642,815.80 = 112,628,136.40/x
  3. Step 3: Cross multiply
    113,761,877.20x = 170,642,815.80 × 112,628,136.40
  4. Step 4: Simplify right side
    113,761,877.20x = 19,219,182,333,602,476
  5. Step 5: Solve for x
    x = 19,219,182,333,602,476/113,761,877.20
  6. Step 6: Final answer
    x = 168,942,204.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.