Home / 111,231.72-153,527.24-63,512.74

Finding the Fourth Proportional to 111,231.72, 153,527.24 and 63,512.74

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Solution

The fourth proportional to 111,231.72, 153,527.24 and 63,512.74 is: 87,663.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,231.72 : 153,527.24 = 63,512.74 : x
  2. Step 2: Convert to fraction form
    111,231.72/153,527.24 = 63,512.74/x
  3. Step 3: Cross multiply
    111,231.72x = 153,527.24 × 63,512.74
  4. Step 4: Simplify right side
    111,231.72x = 9,750,935,677.04
  5. Step 5: Solve for x
    x = 9,750,935,677.04/111,231.72
  6. Step 6: Final answer
    x = 87,663.26

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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.