Home / 97,770.16-134,853.12-89,729.72

Finding the Fourth Proportional to 97,770.16, 134,853.12 and 89,729.72

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Solution

The fourth proportional to 97,770.16, 134,853.12 and 89,729.72 is: 123,763.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,770.16 : 134,853.12 = 89,729.72 : x
  2. Step 2: Convert to fraction form
    97,770.16/134,853.12 = 89,729.72/x
  3. Step 3: Cross multiply
    97,770.16x = 134,853.12 × 89,729.72
  4. Step 4: Simplify right side
    97,770.16x = 12,100,332,698.73
  5. Step 5: Solve for x
    x = 12,100,332,698.73/97,770.16
  6. Step 6: Final answer
    x = 123,763.04

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1.5x scale

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.