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Finding the Fourth Proportional to 145,800.01, 199,891.80 and 143,142.81

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Solution

The fourth proportional to 145,800.01, 199,891.80 and 143,142.81 is: 196,248.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,800.01 : 199,891.80 = 143,142.81 : x
  2. Step 2: Convert to fraction form
    145,800.01/199,891.80 = 143,142.81/x
  3. Step 3: Cross multiply
    145,800.01x = 199,891.80 × 143,142.81
  4. Step 4: Simplify right side
    145,800.01x = 28,613,073,947.96
  5. Step 5: Solve for x
    x = 28,613,073,947.96/145,800.01
  6. Step 6: Final answer
    x = 196,248.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.