Home / 142,778.28-214,159.14-42,936.30

Finding the Fourth Proportional to 142,778.28, 214,159.14 and 42,936.30

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Solution

The fourth proportional to 142,778.28, 214,159.14 and 42,936.30 is: 64,401.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,778.28 : 214,159.14 = 42,936.30 : x
  2. Step 2: Convert to fraction form
    142,778.28/214,159.14 = 42,936.30/x
  3. Step 3: Cross multiply
    142,778.28x = 214,159.14 × 42,936.30
  4. Step 4: Simplify right side
    142,778.28x = 9,195,201,082.78
  5. Step 5: Solve for x
    x = 9,195,201,082.78/142,778.28
  6. Step 6: Final answer
    x = 64,401.96

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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.