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Finding the Fourth Proportional to 103,086.92, 154,689.84 and 55,702.13

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Solution

The fourth proportional to 103,086.92, 154,689.84 and 55,702.13 is: 83,585.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,086.92 : 154,689.84 = 55,702.13 : x
  2. Step 2: Convert to fraction form
    103,086.92/154,689.84 = 55,702.13/x
  3. Step 3: Cross multiply
    103,086.92x = 154,689.84 × 55,702.13
  4. Step 4: Simplify right side
    103,086.92x = 8,616,553,577.36
  5. Step 5: Solve for x
    x = 8,616,553,577.36/103,086.92
  6. Step 6: Final answer
    x = 83,585.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.