Home / 158,151.18-218,255.13-86,537.46

Finding the Fourth Proportional to 158,151.18, 218,255.13 and 86,537.46

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Solution

The fourth proportional to 158,151.18, 218,255.13 and 86,537.46 is: 119,425.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,151.18 : 218,255.13 = 86,537.46 : x
  2. Step 2: Convert to fraction form
    158,151.18/218,255.13 = 86,537.46/x
  3. Step 3: Cross multiply
    158,151.18x = 218,255.13 × 86,537.46
  4. Step 4: Simplify right side
    158,151.18x = 18,887,244,582.17
  5. Step 5: Solve for x
    x = 18,887,244,582.17/158,151.18
  6. Step 6: Final answer
    x = 119,425.25

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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.