Home / 158,132.16-218,227.76-90,159.12

Finding the Fourth Proportional to 158,132.16, 218,227.76 and 90,159.12

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Solution

The fourth proportional to 158,132.16, 218,227.76 and 90,159.12 is: 124,422.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,132.16 : 218,227.76 = 90,159.12 : x
  2. Step 2: Convert to fraction form
    158,132.16/218,227.76 = 90,159.12/x
  3. Step 3: Cross multiply
    158,132.16x = 218,227.76 × 90,159.12
  4. Step 4: Simplify right side
    158,132.16x = 19,675,222,801.17
  5. Step 5: Solve for x
    x = 19,675,222,801.17/158,132.16
  6. Step 6: Final answer
    x = 124,422.65

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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.