Home / 129,368.83-178,469.98-93,502.03

Finding the Fourth Proportional to 129,368.83, 178,469.98 and 93,502.03

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Solution

The fourth proportional to 129,368.83, 178,469.98 and 93,502.03 is: 128,990.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,368.83 : 178,469.98 = 93,502.03 : x
  2. Step 2: Convert to fraction form
    129,368.83/178,469.98 = 93,502.03/x
  3. Step 3: Cross multiply
    129,368.83x = 178,469.98 × 93,502.03
  4. Step 4: Simplify right side
    129,368.83x = 16,687,305,424.06
  5. Step 5: Solve for x
    x = 16,687,305,424.06/129,368.83
  6. Step 6: Final answer
    x = 128,990.15

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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.