Home / 107,217.12-147,862.81-66,934.62

Finding the Fourth Proportional to 107,217.12, 147,862.81 and 66,934.62

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Solution

The fourth proportional to 107,217.12, 147,862.81 and 66,934.62 is: 92,309.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,217.12 : 147,862.81 = 66,934.62 : x
  2. Step 2: Convert to fraction form
    107,217.12/147,862.81 = 66,934.62/x
  3. Step 3: Cross multiply
    107,217.12x = 147,862.81 × 66,934.62
  4. Step 4: Simplify right side
    107,217.12x = 9,897,140,999.48
  5. Step 5: Solve for x
    x = 9,897,140,999.48/107,217.12
  6. Step 6: Final answer
    x = 92,309.33

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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.