Home / 88,187.70-121,700.34-47,902.25

Finding the Fourth Proportional to 88,187.70, 121,700.34 and 47,902.25

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Solution

The fourth proportional to 88,187.70, 121,700.34 and 47,902.25 is: 66,105.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,187.70 : 121,700.34 = 47,902.25 : x
  2. Step 2: Convert to fraction form
    88,187.70/121,700.34 = 47,902.25/x
  3. Step 3: Cross multiply
    88,187.70x = 121,700.34 × 47,902.25
  4. Step 4: Simplify right side
    88,187.70x = 5,829,719,503.26
  5. Step 5: Solve for x
    x = 5,829,719,503.26/88,187.70
  6. Step 6: Final answer
    x = 66,105.81

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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.