Home / 158,264.66-218,405.28-86,649.23

Finding the Fourth Proportional to 158,264.66, 218,405.28 and 86,649.23

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Solution

The fourth proportional to 158,264.66, 218,405.28 and 86,649.23 is: 119,575.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,264.66 : 218,405.28 = 86,649.23 : x
  2. Step 2: Convert to fraction form
    158,264.66/218,405.28 = 86,649.23/x
  3. Step 3: Cross multiply
    158,264.66x = 218,405.28 × 86,649.23
  4. Step 4: Simplify right side
    158,264.66x = 18,924,649,339.93
  5. Step 5: Solve for x
    x = 18,924,649,339.93/158,264.66
  6. Step 6: Final answer
    x = 119,575.96

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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.