Home / 113,629.95-156,802.28-62,640.05

Finding the Fourth Proportional to 113,629.95, 156,802.28 and 62,640.05

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Solution

The fourth proportional to 113,629.95, 156,802.28 and 62,640.05 is: 86,439.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,629.95 : 156,802.28 = 62,640.05 : x
  2. Step 2: Convert to fraction form
    113,629.95/156,802.28 = 62,640.05/x
  3. Step 3: Cross multiply
    113,629.95x = 156,802.28 × 62,640.05
  4. Step 4: Simplify right side
    113,629.95x = 9,822,101,562.10
  5. Step 5: Solve for x
    x = 9,822,101,562.10/113,629.95
  6. Step 6: Final answer
    x = 86,439.37

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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.