Home / 158,269.18-218,432.26-90,270.56

Finding the Fourth Proportional to 158,269.18, 218,432.26 and 90,270.56

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Solution

The fourth proportional to 158,269.18, 218,432.26 and 90,270.56 is: 124,585.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,269.18 : 218,432.26 = 90,270.56 : x
  2. Step 2: Convert to fraction form
    158,269.18/218,432.26 = 90,270.56/x
  3. Step 3: Cross multiply
    158,269.18x = 218,432.26 × 90,270.56
  4. Step 4: Simplify right side
    158,269.18x = 19,718,003,039.29
  5. Step 5: Solve for x
    x = 19,718,003,039.29/158,269.18
  6. Step 6: Final answer
    x = 124,585.24

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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.