Home / 105,959.12-146,158.80-62,909.42

Finding the Fourth Proportional to 105,959.12, 146,158.80 and 62,909.42

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Solution

The fourth proportional to 105,959.12, 146,158.80 and 62,909.42 is: 86,776.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,959.12 : 146,158.80 = 62,909.42 : x
  2. Step 2: Convert to fraction form
    105,959.12/146,158.80 = 62,909.42/x
  3. Step 3: Cross multiply
    105,959.12x = 146,158.80 × 62,909.42
  4. Step 4: Simplify right side
    105,959.12x = 9,194,765,335.90
  5. Step 5: Solve for x
    x = 9,194,765,335.90/105,959.12
  6. Step 6: Final answer
    x = 86,776.54

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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.