Home / 130,200.24-179,679.69-72,837.66

Finding the Fourth Proportional to 130,200.24, 179,679.69 and 72,837.66

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Solution

The fourth proportional to 130,200.24, 179,679.69 and 72,837.66 is: 100,517.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,200.24 : 179,679.69 = 72,837.66 : x
  2. Step 2: Convert to fraction form
    130,200.24/179,679.69 = 72,837.66/x
  3. Step 3: Cross multiply
    130,200.24x = 179,679.69 × 72,837.66
  4. Step 4: Simplify right side
    130,200.24x = 13,087,448,169.13
  5. Step 5: Solve for x
    x = 13,087,448,169.13/130,200.24
  6. Step 6: Final answer
    x = 100,517.85

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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.