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Finding the Fourth Proportional to 137,345.60, 205,864.80 and 58,446.40

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Solution

The fourth proportional to 137,345.60, 205,864.80 and 58,446.40 is: 87,604.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,345.60 : 205,864.80 = 58,446.40 : x
  2. Step 2: Convert to fraction form
    137,345.60/205,864.80 = 58,446.40/x
  3. Step 3: Cross multiply
    137,345.60x = 205,864.80 × 58,446.40
  4. Step 4: Simplify right side
    137,345.60x = 12,032,056,446.72
  5. Step 5: Solve for x
    x = 12,032,056,446.72/137,345.60
  6. Step 6: Final answer
    x = 87,604.24

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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.