Home / 142,400.28-213,600.96-133,739.76

Finding the Fourth Proportional to 142,400.28, 213,600.96 and 133,739.76

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Solution

The fourth proportional to 142,400.28, 213,600.96 and 133,739.76 is: 200,610.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,400.28 : 213,600.96 = 133,739.76 : x
  2. Step 2: Convert to fraction form
    142,400.28/213,600.96 = 133,739.76/x
  3. Step 3: Cross multiply
    142,400.28x = 213,600.96 × 133,739.76
  4. Step 4: Simplify right side
    142,400.28x = 28,566,941,126.17
  5. Step 5: Solve for x
    x = 28,566,941,126.17/142,400.28
  6. Step 6: Final answer
    x = 200,610.15

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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.