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Finding the Fourth Proportional to 144,952.40, 200,042.88 and 81,293.72

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Solution

The fourth proportional to 144,952.40, 200,042.88 and 81,293.72 is: 112,190.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,952.40 : 200,042.88 = 81,293.72 : x
  2. Step 2: Convert to fraction form
    144,952.40/200,042.88 = 81,293.72/x
  3. Step 3: Cross multiply
    144,952.40x = 200,042.88 × 81,293.72
  4. Step 4: Simplify right side
    144,952.40x = 16,262,229,874.71
  5. Step 5: Solve for x
    x = 16,262,229,874.71/144,952.40
  6. Step 6: Final answer
    x = 112,190.14

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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.