Home / 99,121.80-148,250.70-88,667.40

Finding the Fourth Proportional to 99,121.80, 148,250.70 and 88,667.40

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Solution

The fourth proportional to 99,121.80, 148,250.70 and 88,667.40 is: 132,614.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,121.80 : 148,250.70 = 88,667.40 : x
  2. Step 2: Convert to fraction form
    99,121.80/148,250.70 = 88,667.40/x
  3. Step 3: Cross multiply
    99,121.80x = 148,250.70 × 88,667.40
  4. Step 4: Simplify right side
    99,121.80x = 13,145,004,117.18
  5. Step 5: Solve for x
    x = 13,145,004,117.18/99,121.80
  6. Step 6: Final answer
    x = 132,614.66

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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.