Home / 158,279.40-218,446.36-90,280.76

Finding the Fourth Proportional to 158,279.40, 218,446.36 and 90,280.76

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Solution

The fourth proportional to 158,279.40, 218,446.36 and 90,280.76 is: 124,599.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,279.40 : 218,446.36 = 90,280.76 : x
  2. Step 2: Convert to fraction form
    158,279.40/218,446.36 = 90,280.76/x
  3. Step 3: Cross multiply
    158,279.40x = 218,446.36 × 90,280.76
  4. Step 4: Simplify right side
    158,279.40x = 19,721,502,082.10
  5. Step 5: Solve for x
    x = 19,721,502,082.10/158,279.40
  6. Step 6: Final answer
    x = 124,599.30

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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.