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Finding the Fourth Proportional to 137,658.71, 190,003.95 and 94,068.92

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Solution

The fourth proportional to 137,658.71, 190,003.95 and 94,068.92 is: 129,838.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,658.71 : 190,003.95 = 94,068.92 : x
  2. Step 2: Convert to fraction form
    137,658.71/190,003.95 = 94,068.92/x
  3. Step 3: Cross multiply
    137,658.71x = 190,003.95 × 94,068.92
  4. Step 4: Simplify right side
    137,658.71x = 17,873,465,422.21
  5. Step 5: Solve for x
    x = 17,873,465,422.21/137,658.71
  6. Step 6: Final answer
    x = 129,838.97

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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.