Home / 88,258.40-121,655.04-69,105.92

Finding the Fourth Proportional to 88,258.40, 121,655.04 and 69,105.92

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Solution

The fourth proportional to 88,258.40, 121,655.04 and 69,105.92 is: 95,255.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,258.40 : 121,655.04 = 69,105.92 : x
  2. Step 2: Convert to fraction form
    88,258.40/121,655.04 = 69,105.92/x
  3. Step 3: Cross multiply
    88,258.40x = 121,655.04 × 69,105.92
  4. Step 4: Simplify right side
    88,258.40x = 8,407,083,461.84
  5. Step 5: Solve for x
    x = 8,407,083,461.84/88,258.40
  6. Step 6: Final answer
    x = 95,255.34

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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.