Home / 107,080.12-147,766.58-61,760

Finding the Fourth Proportional to 107,080.12, 147,766.58 and 61,760

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Solution

The fourth proportional to 107,080.12, 147,766.58 and 61,760 is: 85,226.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,080.12 : 147,766.58 = 61,760 : x
  2. Step 2: Convert to fraction form
    107,080.12/147,766.58 = 61,760/x
  3. Step 3: Cross multiply
    107,080.12x = 147,766.58 × 61,760
  4. Step 4: Simplify right side
    107,080.12x = 9,126,063,980.80
  5. Step 5: Solve for x
    x = 9,126,063,980.80/107,080.12
  6. Step 6: Final answer
    x = 85,226.50

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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.