Home / 129,933.12-179,479.80-104,535.12

Finding the Fourth Proportional to 129,933.12, 179,479.80 and 104,535.12

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Solution

The fourth proportional to 129,933.12, 179,479.80 and 104,535.12 is: 144,396.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,933.12 : 179,479.80 = 104,535.12 : x
  2. Step 2: Convert to fraction form
    129,933.12/179,479.80 = 104,535.12/x
  3. Step 3: Cross multiply
    129,933.12x = 179,479.80 × 104,535.12
  4. Step 4: Simplify right side
    129,933.12x = 18,761,942,430.58
  5. Step 5: Solve for x
    x = 18,761,942,430.58/129,933.12
  6. Step 6: Final answer
    x = 144,396.92

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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.