Home / 136,403.55-188,242.13-79,044.82

Finding the Fourth Proportional to 136,403.55, 188,242.13 and 79,044.82

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Solution

The fourth proportional to 136,403.55, 188,242.13 and 79,044.82 is: 109,084.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,403.55 : 188,242.13 = 79,044.82 : x
  2. Step 2: Convert to fraction form
    136,403.55/188,242.13 = 79,044.82/x
  3. Step 3: Cross multiply
    136,403.55x = 188,242.13 × 79,044.82
  4. Step 4: Simplify right side
    136,403.55x = 14,879,565,282.27
  5. Step 5: Solve for x
    x = 14,879,565,282.27/136,403.55
  6. Step 6: Final answer
    x = 109,084.88

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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.