Home / 88,055.50-121,425.22-75,350.72

Finding the Fourth Proportional to 88,055.50, 121,425.22 and 75,350.72

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Solution

The fourth proportional to 88,055.50, 121,425.22 and 75,350.72 is: 103,905.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,055.50 : 121,425.22 = 75,350.72 : x
  2. Step 2: Convert to fraction form
    88,055.50/121,425.22 = 75,350.72/x
  3. Step 3: Cross multiply
    88,055.50x = 121,425.22 × 75,350.72
  4. Step 4: Simplify right side
    88,055.50x = 9,149,477,753.16
  5. Step 5: Solve for x
    x = 9,149,477,753.16/88,055.50
  6. Step 6: Final answer
    x = 103,905.81

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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.