Home / 111,927.18-154,474.25-64,171.20

Finding the Fourth Proportional to 111,927.18, 154,474.25 and 64,171.20

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Solution

The fourth proportional to 111,927.18, 154,474.25 and 64,171.20 is: 88,564.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,927.18 : 154,474.25 = 64,171.20 : x
  2. Step 2: Convert to fraction form
    111,927.18/154,474.25 = 64,171.20/x
  3. Step 3: Cross multiply
    111,927.18x = 154,474.25 × 64,171.20
  4. Step 4: Simplify right side
    111,927.18x = 9,912,797,670.74
  5. Step 5: Solve for x
    x = 9,912,797,670.74/111,927.18
  6. Step 6: Final answer
    x = 88,564.70

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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.