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Finding the Fourth Proportional to 105,345.60, 157,917.60 and 52,702.08

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Solution

The fourth proportional to 105,345.60, 157,917.60 and 52,702.08 is: 79,002.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,345.60 : 157,917.60 = 52,702.08 : x
  2. Step 2: Convert to fraction form
    105,345.60/157,917.60 = 52,702.08/x
  3. Step 3: Cross multiply
    105,345.60x = 157,917.60 × 52,702.08
  4. Step 4: Simplify right side
    105,345.60x = 8,322,585,988.61
  5. Step 5: Solve for x
    x = 8,322,585,988.61/105,345.60
  6. Step 6: Final answer
    x = 79,002.69

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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.