Home / 158,370.57-218,551.44-86,753.18

Finding the Fourth Proportional to 158,370.57, 218,551.44 and 86,753.18

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Solution

The fourth proportional to 158,370.57, 218,551.44 and 86,753.18 is: 119,719.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,370.57 : 218,551.44 = 86,753.18 : x
  2. Step 2: Convert to fraction form
    158,370.57/218,551.44 = 86,753.18/x
  3. Step 3: Cross multiply
    158,370.57x = 218,551.44 × 86,753.18
  4. Step 4: Simplify right side
    158,370.57x = 18,960,031,320.82
  5. Step 5: Solve for x
    x = 18,960,031,320.82/158,370.57
  6. Step 6: Final answer
    x = 119,719.41

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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.