Home / 105,734.34-145,909.08-63,267.66

Finding the Fourth Proportional to 105,734.34, 145,909.08 and 63,267.66

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Solution

The fourth proportional to 105,734.34, 145,909.08 and 63,267.66 is: 87,306.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,734.34 : 145,909.08 = 63,267.66 : x
  2. Step 2: Convert to fraction form
    105,734.34/145,909.08 = 63,267.66/x
  3. Step 3: Cross multiply
    105,734.34x = 145,909.08 × 63,267.66
  4. Step 4: Simplify right side
    105,734.34x = 9,231,326,064.35
  5. Step 5: Solve for x
    x = 9,231,326,064.35/105,734.34
  6. Step 6: Final answer
    x = 87,306.79

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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.