Home / 158,356.60-218,535.64-90,372.20

Finding the Fourth Proportional to 158,356.60, 218,535.64 and 90,372.20

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Solution

The fourth proportional to 158,356.60, 218,535.64 and 90,372.20 is: 124,715.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,356.60 : 218,535.64 = 90,372.20 : x
  2. Step 2: Convert to fraction form
    158,356.60/218,535.64 = 90,372.20/x
  3. Step 3: Cross multiply
    158,356.60x = 218,535.64 × 90,372.20
  4. Step 4: Simplify right side
    158,356.60x = 19,749,546,565.21
  5. Step 5: Solve for x
    x = 19,749,546,565.21/158,356.60
  6. Step 6: Final answer
    x = 124,715.65

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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.