Home / 131,088.23-180,917.12-74,508.11

Finding the Fourth Proportional to 131,088.23, 180,917.12 and 74,508.11

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Solution

The fourth proportional to 131,088.23, 180,917.12 and 74,508.11 is: 102,829.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,088.23 : 180,917.12 = 74,508.11 : x
  2. Step 2: Convert to fraction form
    131,088.23/180,917.12 = 74,508.11/x
  3. Step 3: Cross multiply
    131,088.23x = 180,917.12 × 74,508.11
  4. Step 4: Simplify right side
    131,088.23x = 13,479,792,305.30
  5. Step 5: Solve for x
    x = 13,479,792,305.30/131,088.23
  6. Step 6: Final answer
    x = 102,829.92

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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.