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Finding the Fourth Proportional to 143,652.74, 215,407.01 and 83,700.59

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Solution

The fourth proportional to 143,652.74, 215,407.01 and 83,700.59 is: 125,508.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,652.74 : 215,407.01 = 83,700.59 : x
  2. Step 2: Convert to fraction form
    143,652.74/215,407.01 = 83,700.59/x
  3. Step 3: Cross multiply
    143,652.74x = 215,407.01 × 83,700.59
  4. Step 4: Simplify right side
    143,652.74x = 18,029,692,959.35
  5. Step 5: Solve for x
    x = 18,029,692,959.35/143,652.74
  6. Step 6: Final answer
    x = 125,508.87

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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.