Home / 130,234.80-179,759.45-76,537.12

Finding the Fourth Proportional to 130,234.80, 179,759.45 and 76,537.12

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Solution

The fourth proportional to 130,234.80, 179,759.45 and 76,537.12 is: 105,642.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,234.80 : 179,759.45 = 76,537.12 : x
  2. Step 2: Convert to fraction form
    130,234.80/179,759.45 = 76,537.12/x
  3. Step 3: Cross multiply
    130,234.80x = 179,759.45 × 76,537.12
  4. Step 4: Simplify right side
    130,234.80x = 13,758,270,595.78
  5. Step 5: Solve for x
    x = 13,758,270,595.78/130,234.80
  6. Step 6: Final answer
    x = 105,642.04

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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.