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Finding the Fourth Proportional to 121,895.70, 182,843.55 and 88,458.90

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Solution

The fourth proportional to 121,895.70, 182,843.55 and 88,458.90 is: 132,688.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,895.70 : 182,843.55 = 88,458.90 : x
  2. Step 2: Convert to fraction form
    121,895.70/182,843.55 = 88,458.90/x
  3. Step 3: Cross multiply
    121,895.70x = 182,843.55 × 88,458.90
  4. Step 4: Simplify right side
    121,895.70x = 16,174,139,305.10
  5. Step 5: Solve for x
    x = 16,174,139,305.10/121,895.70
  6. Step 6: Final answer
    x = 132,688.35

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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.