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Finding the Fourth Proportional to 143,730.01, 215,626.57 and 42,520.14

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Solution

The fourth proportional to 143,730.01, 215,626.57 and 42,520.14 is: 63,789.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,730.01 : 215,626.57 = 42,520.14 : x
  2. Step 2: Convert to fraction form
    143,730.01/215,626.57 = 42,520.14/x
  3. Step 3: Cross multiply
    143,730.01x = 215,626.57 × 42,520.14
  4. Step 4: Simplify right side
    143,730.01x = 9,168,471,944.12
  5. Step 5: Solve for x
    x = 9,168,471,944.12/143,730.01
  6. Step 6: Final answer
    x = 63,789.55

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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.