Home / 88,964.80-133,447.20-85,125.40

Finding the Fourth Proportional to 88,964.80, 133,447.20 and 85,125.40

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Solution

The fourth proportional to 88,964.80, 133,447.20 and 85,125.40 is: 127,688.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,964.80 : 133,447.20 = 85,125.40 : x
  2. Step 2: Convert to fraction form
    88,964.80/133,447.20 = 85,125.40/x
  3. Step 3: Cross multiply
    88,964.80x = 133,447.20 × 85,125.40
  4. Step 4: Simplify right side
    88,964.80x = 11,359,746,278.88
  5. Step 5: Solve for x
    x = 11,359,746,278.88/88,964.80
  6. Step 6: Final answer
    x = 127,688.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.