Home / 146,977.12-202,827-79,909.12

Finding the Fourth Proportional to 146,977.12, 202,827 and 79,909.12

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Solution

The fourth proportional to 146,977.12, 202,827 and 79,909.12 is: 110,273.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,977.12 : 202,827 = 79,909.12 : x
  2. Step 2: Convert to fraction form
    146,977.12/202,827 = 79,909.12/x
  3. Step 3: Cross multiply
    146,977.12x = 202,827 × 79,909.12
  4. Step 4: Simplify right side
    146,977.12x = 16,207,727,082.24
  5. Step 5: Solve for x
    x = 16,207,727,082.24/146,977.12
  6. Step 6: Final answer
    x = 110,273.81

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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.