Home / 158,082.30-218,159.19-90,109.53

Finding the Fourth Proportional to 158,082.30, 218,159.19 and 90,109.53

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Solution

The fourth proportional to 158,082.30, 218,159.19 and 90,109.53 is: 124,354.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,082.30 : 218,159.19 = 90,109.53 : x
  2. Step 2: Convert to fraction form
    158,082.30/218,159.19 = 90,109.53/x
  3. Step 3: Cross multiply
    158,082.30x = 218,159.19 × 90,109.53
  4. Step 4: Simplify right side
    158,082.30x = 19,658,222,076.08
  5. Step 5: Solve for x
    x = 19,658,222,076.08/158,082.30
  6. Step 6: Final answer
    x = 124,354.35

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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.