Home / 112,812.30-155,680.65-62,511.30

Finding the Fourth Proportional to 112,812.30, 155,680.65 and 62,511.30

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Solution

The fourth proportional to 112,812.30, 155,680.65 and 62,511.30 is: 86,265.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,812.30 : 155,680.65 = 62,511.30 : x
  2. Step 2: Convert to fraction form
    112,812.30/155,680.65 = 62,511.30/x
  3. Step 3: Cross multiply
    112,812.30x = 155,680.65 × 62,511.30
  4. Step 4: Simplify right side
    112,812.30x = 9,731,799,816.35
  5. Step 5: Solve for x
    x = 9,731,799,816.35/112,812.30
  6. Step 6: Final answer
    x = 86,265.41

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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.