Home / 158,182.35-218,291.64-86,562.40

Finding the Fourth Proportional to 158,182.35, 218,291.64 and 86,562.40

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Solution

The fourth proportional to 158,182.35, 218,291.64 and 86,562.40 is: 119,456.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,182.35 : 218,291.64 = 86,562.40 : x
  2. Step 2: Convert to fraction form
    158,182.35/218,291.64 = 86,562.40/x
  3. Step 3: Cross multiply
    158,182.35x = 218,291.64 × 86,562.40
  4. Step 4: Simplify right side
    158,182.35x = 18,895,847,166.88
  5. Step 5: Solve for x
    x = 18,895,847,166.88/158,182.35
  6. Step 6: Final answer
    x = 119,456.10

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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.