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Finding the Fourth Proportional to 115,909.20, 173,863.80 and 37,031.40

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Solution

The fourth proportional to 115,909.20, 173,863.80 and 37,031.40 is: 55,547.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,909.20 : 173,863.80 = 37,031.40 : x
  2. Step 2: Convert to fraction form
    115,909.20/173,863.80 = 37,031.40/x
  3. Step 3: Cross multiply
    115,909.20x = 173,863.80 × 37,031.40
  4. Step 4: Simplify right side
    115,909.20x = 6,438,419,923.32
  5. Step 5: Solve for x
    x = 6,438,419,923.32/115,909.20
  6. Step 6: Final answer
    x = 55,547.10

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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.