Home / 111,421.40-153,761.06-60,433.92

Finding the Fourth Proportional to 111,421.40, 153,761.06 and 60,433.92

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Solution

The fourth proportional to 111,421.40, 153,761.06 and 60,433.92 is: 83,398.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,421.40 : 153,761.06 = 60,433.92 : x
  2. Step 2: Convert to fraction form
    111,421.40/153,761.06 = 60,433.92/x
  3. Step 3: Cross multiply
    111,421.40x = 153,761.06 × 60,433.92
  4. Step 4: Simplify right side
    111,421.40x = 9,292,383,599.16
  5. Step 5: Solve for x
    x = 9,292,383,599.16/111,421.40
  6. Step 6: Final answer
    x = 83,398.55

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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.