Home / 109,490.05-151,084.98-80,824.96

Finding the Fourth Proportional to 109,490.05, 151,084.98 and 80,824.96

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Solution

The fourth proportional to 109,490.05, 151,084.98 and 80,824.96 is: 111,530.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,490.05 : 151,084.98 = 80,824.96 : x
  2. Step 2: Convert to fraction form
    109,490.05/151,084.98 = 80,824.96/x
  3. Step 3: Cross multiply
    109,490.05x = 151,084.98 × 80,824.96
  4. Step 4: Simplify right side
    109,490.05x = 12,211,437,465.10
  5. Step 5: Solve for x
    x = 12,211,437,465.10/109,490.05
  6. Step 6: Final answer
    x = 111,530.11

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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.