Home / 158,269.92-218,424.62-90,288.39

Finding the Fourth Proportional to 158,269.92, 218,424.62 and 90,288.39

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Solution

The fourth proportional to 158,269.92, 218,424.62 and 90,288.39 is: 124,604.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,269.92 : 218,424.62 = 90,288.39 : x
  2. Step 2: Convert to fraction form
    158,269.92/218,424.62 = 90,288.39/x
  3. Step 3: Cross multiply
    158,269.92x = 218,424.62 × 90,288.39
  4. Step 4: Simplify right side
    158,269.92x = 19,721,207,276.16
  5. Step 5: Solve for x
    x = 19,721,207,276.16/158,269.92
  6. Step 6: Final answer
    x = 124,604.90

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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.