Home / 130,367.12-179,909.17-85,074.08

Finding the Fourth Proportional to 130,367.12, 179,909.17 and 85,074.08

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Solution

The fourth proportional to 130,367.12, 179,909.17 and 85,074.08 is: 117,403.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,367.12 : 179,909.17 = 85,074.08 : x
  2. Step 2: Convert to fraction form
    130,367.12/179,909.17 = 85,074.08/x
  3. Step 3: Cross multiply
    130,367.12x = 179,909.17 × 85,074.08
  4. Step 4: Simplify right side
    130,367.12x = 15,305,606,009.08
  5. Step 5: Solve for x
    x = 15,305,606,009.08/130,367.12
  6. Step 6: Final answer
    x = 117,403.89

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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.