Home / 158,079.56-218,146.72-86,459.36

Finding the Fourth Proportional to 158,079.56, 218,146.72 and 86,459.36

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Solution

The fourth proportional to 158,079.56, 218,146.72 and 86,459.36 is: 119,312.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,079.56 : 218,146.72 = 86,459.36 : x
  2. Step 2: Convert to fraction form
    158,079.56/218,146.72 = 86,459.36/x
  3. Step 3: Cross multiply
    158,079.56x = 218,146.72 × 86,459.36
  4. Step 4: Simplify right side
    158,079.56x = 18,860,825,797.30
  5. Step 5: Solve for x
    x = 18,860,825,797.30/158,079.56
  6. Step 6: Final answer
    x = 119,312.24

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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.