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Finding the Fourth Proportional to 142,486.68, 213,772.82 and 42,650.13

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Solution

The fourth proportional to 142,486.68, 213,772.82 and 42,650.13 is: 63,988.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,486.68 : 213,772.82 = 42,650.13 : x
  2. Step 2: Convert to fraction form
    142,486.68/213,772.82 = 42,650.13/x
  3. Step 3: Cross multiply
    142,486.68x = 213,772.82 × 42,650.13
  4. Step 4: Simplify right side
    142,486.68x = 9,117,438,563.47
  5. Step 5: Solve for x
    x = 9,117,438,563.47/142,486.68
  6. Step 6: Final answer
    x = 63,988.01

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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.