Home / 130,065.08-179,489.18-72,704.39

Finding the Fourth Proportional to 130,065.08, 179,489.18 and 72,704.39

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Solution

The fourth proportional to 130,065.08, 179,489.18 and 72,704.39 is: 100,331.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,065.08 : 179,489.18 = 72,704.39 : x
  2. Step 2: Convert to fraction form
    130,065.08/179,489.18 = 72,704.39/x
  3. Step 3: Cross multiply
    130,065.08x = 179,489.18 × 72,704.39
  4. Step 4: Simplify right side
    130,065.08x = 13,049,650,627.82
  5. Step 5: Solve for x
    x = 13,049,650,627.82/130,065.08
  6. Step 6: Final answer
    x = 100,331.70

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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.