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Finding the Fourth Proportional to 158,444.60, 218,659.58 and 90,472.64

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Solution

The fourth proportional to 158,444.60, 218,659.58 and 90,472.64 is: 124,855.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,444.60 : 218,659.58 = 90,472.64 : x
  2. Step 2: Convert to fraction form
    158,444.60/218,659.58 = 90,472.64/x
  3. Step 3: Cross multiply
    158,444.60x = 218,659.58 × 90,472.64
  4. Step 4: Simplify right side
    158,444.60x = 19,782,707,918.23
  5. Step 5: Solve for x
    x = 19,782,707,918.23/158,444.60
  6. Step 6: Final answer
    x = 124,855.68

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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.