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Finding the Fourth Proportional to 143,551.70, 215,327.55 and 43,711.10

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Solution

The fourth proportional to 143,551.70, 215,327.55 and 43,711.10 is: 65,566.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,551.70 : 215,327.55 = 43,711.10 : x
  2. Step 2: Convert to fraction form
    143,551.70/215,327.55 = 43,711.10/x
  3. Step 3: Cross multiply
    143,551.70x = 215,327.55 × 43,711.10
  4. Step 4: Simplify right side
    143,551.70x = 9,412,204,070.81
  5. Step 5: Solve for x
    x = 9,412,204,070.81/143,551.70
  6. Step 6: Final answer
    x = 65,566.65

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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.