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Finding the Fourth Proportional to 113,750.39, 170,265.71 and 71,484.21

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Solution

The fourth proportional to 113,750.39, 170,265.71 and 71,484.21 is: 107,000.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,750.39 : 170,265.71 = 71,484.21 : x
  2. Step 2: Convert to fraction form
    113,750.39/170,265.71 = 71,484.21/x
  3. Step 3: Cross multiply
    113,750.39x = 170,265.71 × 71,484.21
  4. Step 4: Simplify right side
    113,750.39x = 12,171,309,412.02
  5. Step 5: Solve for x
    x = 12,171,309,412.02/113,750.39
  6. Step 6: Final answer
    x = 107,000.16

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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.