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Finding the Fourth Proportional to 115,118.96, 172,678.88 and 58,928.40

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Solution

The fourth proportional to 115,118.96, 172,678.88 and 58,928.40 is: 88,392.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,118.96 : 172,678.88 = 58,928.40 : x
  2. Step 2: Convert to fraction form
    115,118.96/172,678.88 = 58,928.40/x
  3. Step 3: Cross multiply
    115,118.96x = 172,678.88 × 58,928.40
  4. Step 4: Simplify right side
    115,118.96x = 10,175,690,112.19
  5. Step 5: Solve for x
    x = 10,175,690,112.19/115,118.96
  6. Step 6: Final answer
    x = 88,392.83

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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.