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Finding the Fourth Proportional to 158,598.57, 218,834.24 and 90,637.86

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Solution

The fourth proportional to 158,598.57, 218,834.24 and 90,637.86 is: 125,062.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,598.57 : 218,834.24 = 90,637.86 : x
  2. Step 2: Convert to fraction form
    158,598.57/218,834.24 = 90,637.86/x
  3. Step 3: Cross multiply
    158,598.57x = 218,834.24 × 90,637.86
  4. Step 4: Simplify right side
    158,598.57x = 19,834,666,755.14
  5. Step 5: Solve for x
    x = 19,834,666,755.14/158,598.57
  6. Step 6: Final answer
    x = 125,062.08

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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.