Home / 99,209.82-136,910.55-53,888.70

Finding the Fourth Proportional to 99,209.82, 136,910.55 and 53,888.70

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Solution

The fourth proportional to 99,209.82, 136,910.55 and 53,888.70 is: 74,366.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,209.82 : 136,910.55 = 53,888.70 : x
  2. Step 2: Convert to fraction form
    99,209.82/136,910.55 = 53,888.70/x
  3. Step 3: Cross multiply
    99,209.82x = 136,910.55 × 53,888.70
  4. Step 4: Simplify right side
    99,209.82x = 7,377,931,555.79
  5. Step 5: Solve for x
    x = 7,377,931,555.79/99,209.82
  6. Step 6: Final answer
    x = 74,366.95

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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.