Home / 113,162.04-156,162.98-61,478.70

Finding the Fourth Proportional to 113,162.04, 156,162.98 and 61,478.70

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Solution

The fourth proportional to 113,162.04, 156,162.98 and 61,478.70 is: 84,840.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,162.04 : 156,162.98 = 61,478.70 : x
  2. Step 2: Convert to fraction form
    113,162.04/156,162.98 = 61,478.70/x
  3. Step 3: Cross multiply
    113,162.04x = 156,162.98 × 61,478.70
  4. Step 4: Simplify right side
    113,162.04x = 9,600,696,691.13
  5. Step 5: Solve for x
    x = 9,600,696,691.13/113,162.04
  6. Step 6: Final answer
    x = 84,840.26

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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.