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Finding the Fourth Proportional to 158,114.00, 218,209.16 and 90,132.59

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Solution

The fourth proportional to 158,114.00, 218,209.16 and 90,132.59 is: 124,389.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,114.00 : 218,209.16 = 90,132.59 : x
  2. Step 2: Convert to fraction form
    158,114.00/218,209.16 = 90,132.59/x
  3. Step 3: Cross multiply
    158,114.00x = 218,209.16 × 90,132.59
  4. Step 4: Simplify right side
    158,114.00x = 19,667,757,523.38
  5. Step 5: Solve for x
    x = 19,667,757,523.38/158,114.00
  6. Step 6: Final answer
    x = 124,389.73

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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.