Home / 88,194.20-121,708.40-47,908.65

Finding the Fourth Proportional to 88,194.20, 121,708.40 and 47,908.65

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Solution

The fourth proportional to 88,194.20, 121,708.40 and 47,908.65 is: 66,114.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,194.20 : 121,708.40 = 47,908.65 : x
  2. Step 2: Convert to fraction form
    88,194.20/121,708.40 = 47,908.65/x
  3. Step 3: Cross multiply
    88,194.20x = 121,708.40 × 47,908.65
  4. Step 4: Simplify right side
    88,194.20x = 5,830,884,898.12
  5. Step 5: Solve for x
    x = 5,830,884,898.12/88,194.20
  6. Step 6: Final answer
    x = 66,114.15

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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.