Home / 142,082.28-213,133.92-40,876.26

Finding the Fourth Proportional to 142,082.28, 213,133.92 and 40,876.26

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Solution

The fourth proportional to 142,082.28, 213,133.92 and 40,876.26 is: 61,317.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,082.28 : 213,133.92 = 40,876.26 : x
  2. Step 2: Convert to fraction form
    142,082.28/213,133.92 = 40,876.26/x
  3. Step 3: Cross multiply
    142,082.28x = 213,133.92 × 40,876.26
  4. Step 4: Simplify right side
    142,082.28x = 8,712,117,528.74
  5. Step 5: Solve for x
    x = 8,712,117,528.74/142,082.28
  6. Step 6: Final answer
    x = 61,317.41

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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.