Home / 142,130.43-196,211.03-88,432.83

Finding the Fourth Proportional to 142,130.43, 196,211.03 and 88,432.83

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Solution

The fourth proportional to 142,130.43, 196,211.03 and 88,432.83 is: 122,081.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,130.43 : 196,211.03 = 88,432.83 : x
  2. Step 2: Convert to fraction form
    142,130.43/196,211.03 = 88,432.83/x
  3. Step 3: Cross multiply
    142,130.43x = 196,211.03 × 88,432.83
  4. Step 4: Simplify right side
    142,130.43x = 17,351,496,217.95
  5. Step 5: Solve for x
    x = 17,351,496,217.95/142,130.43
  6. Step 6: Final answer
    x = 122,081.50

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.