Home / 142,451.40-213,677.10-89,307.30

Finding the Fourth Proportional to 142,451.40, 213,677.10 and 89,307.30

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Solution

The fourth proportional to 142,451.40, 213,677.10 and 89,307.30 is: 133,960.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,451.40 : 213,677.10 = 89,307.30 : x
  2. Step 2: Convert to fraction form
    142,451.40/213,677.10 = 89,307.30/x
  3. Step 3: Cross multiply
    142,451.40x = 213,677.10 × 89,307.30
  4. Step 4: Simplify right side
    142,451.40x = 19,082,924,872.83
  5. Step 5: Solve for x
    x = 19,082,924,872.83/142,451.40
  6. Step 6: Final answer
    x = 133,960.95

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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.