Home / 88,188.06-121,700.88-47,901.90

Finding the Fourth Proportional to 88,188.06, 121,700.88 and 47,901.90

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Solution

The fourth proportional to 88,188.06, 121,700.88 and 47,901.90 is: 66,105.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,188.06 : 121,700.88 = 47,901.90 : x
  2. Step 2: Convert to fraction form
    88,188.06/121,700.88 = 47,901.90/x
  3. Step 3: Cross multiply
    88,188.06x = 121,700.88 × 47,901.90
  4. Step 4: Simplify right side
    88,188.06x = 5,829,703,383.67
  5. Step 5: Solve for x
    x = 5,829,703,383.67/88,188.06
  6. Step 6: Final answer
    x = 66,105.36

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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.