Home / 133,078.92-183,641.08-76,490.30

Finding the Fourth Proportional to 133,078.92, 183,641.08 and 76,490.30

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Solution

The fourth proportional to 133,078.92, 183,641.08 and 76,490.30 is: 105,552.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,078.92 : 183,641.08 = 76,490.30 : x
  2. Step 2: Convert to fraction form
    133,078.92/183,641.08 = 76,490.30/x
  3. Step 3: Cross multiply
    133,078.92x = 183,641.08 × 76,490.30
  4. Step 4: Simplify right side
    133,078.92x = 14,046,761,301.52
  5. Step 5: Solve for x
    x = 14,046,761,301.52/133,078.92
  6. Step 6: Final answer
    x = 105,552.11

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1.5x scale

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.