Home / 121,337.20-182,005.80-91,812.70

Finding the Fourth Proportional to 121,337.20, 182,005.80 and 91,812.70

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Solution

The fourth proportional to 121,337.20, 182,005.80 and 91,812.70 is: 137,719.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,337.20 : 182,005.80 = 91,812.70 : x
  2. Step 2: Convert to fraction form
    121,337.20/182,005.80 = 91,812.70/x
  3. Step 3: Cross multiply
    121,337.20x = 182,005.80 × 91,812.70
  4. Step 4: Simplify right side
    121,337.20x = 16,710,443,913.66
  5. Step 5: Solve for x
    x = 16,710,443,913.66/121,337.20
  6. Step 6: Final answer
    x = 137,719.05

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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.