Home / 107,020.25-147,687.57-61,698.02

Finding the Fourth Proportional to 107,020.25, 147,687.57 and 61,698.02

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Solution

The fourth proportional to 107,020.25, 147,687.57 and 61,698.02 is: 85,143.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,020.25 : 147,687.57 = 61,698.02 : x
  2. Step 2: Convert to fraction form
    107,020.25/147,687.57 = 61,698.02/x
  3. Step 3: Cross multiply
    107,020.25x = 147,687.57 × 61,698.02
  4. Step 4: Simplify right side
    107,020.25x = 9,112,029,909.17
  5. Step 5: Solve for x
    x = 9,112,029,909.17/107,020.25
  6. Step 6: Final answer
    x = 85,143.05

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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.