Home / 102,877.38-141,655.19-90,058.82

Finding the Fourth Proportional to 102,877.38, 141,655.19 and 90,058.82

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Solution

The fourth proportional to 102,877.38, 141,655.19 and 90,058.82 is: 124,004.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,877.38 : 141,655.19 = 90,058.82 : x
  2. Step 2: Convert to fraction form
    102,877.38/141,655.19 = 90,058.82/x
  3. Step 3: Cross multiply
    102,877.38x = 141,655.19 × 90,058.82
  4. Step 4: Simplify right side
    102,877.38x = 12,757,298,099.71
  5. Step 5: Solve for x
    x = 12,757,298,099.71/102,877.38
  6. Step 6: Final answer
    x = 124,004.89

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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.