Home / 109,777.32-151,436.97-69,423.12

Finding the Fourth Proportional to 109,777.32, 151,436.97 and 69,423.12

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Solution

The fourth proportional to 109,777.32, 151,436.97 and 69,423.12 is: 95,768.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,777.32 : 151,436.97 = 69,423.12 : x
  2. Step 2: Convert to fraction form
    109,777.32/151,436.97 = 69,423.12/x
  3. Step 3: Cross multiply
    109,777.32x = 151,436.97 × 69,423.12
  4. Step 4: Simplify right side
    109,777.32x = 10,513,226,940.75
  5. Step 5: Solve for x
    x = 10,513,226,940.75/109,777.32
  6. Step 6: Final answer
    x = 95,768.66

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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.