Home / 105,857.12-146,074.80-58,102.88

Finding the Fourth Proportional to 105,857.12, 146,074.80 and 58,102.88

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Solution

The fourth proportional to 105,857.12, 146,074.80 and 58,102.88 is: 80,177.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,857.12 : 146,074.80 = 58,102.88 : x
  2. Step 2: Convert to fraction form
    105,857.12/146,074.80 = 58,102.88/x
  3. Step 3: Cross multiply
    105,857.12x = 146,074.80 × 58,102.88
  4. Step 4: Simplify right side
    105,857.12x = 8,487,366,575.42
  5. Step 5: Solve for x
    x = 8,487,366,575.42/105,857.12
  6. Step 6: Final answer
    x = 80,177.57

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1.5x scale

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.