Home / 130,382.42-179,921.50-80,071.70

Finding the Fourth Proportional to 130,382.42, 179,921.50 and 80,071.70

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Solution

The fourth proportional to 130,382.42, 179,921.50 and 80,071.70 is: 110,495.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,382.42 : 179,921.50 = 80,071.70 : x
  2. Step 2: Convert to fraction form
    130,382.42/179,921.50 = 80,071.70/x
  3. Step 3: Cross multiply
    130,382.42x = 179,921.50 × 80,071.70
  4. Step 4: Simplify right side
    130,382.42x = 14,406,620,371.55
  5. Step 5: Solve for x
    x = 14,406,620,371.55/130,382.42
  6. Step 6: Final answer
    x = 110,495.11

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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.