Home / 130,371.92-179,890.40-80,087.12

Finding the Fourth Proportional to 130,371.92, 179,890.40 and 80,087.12

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Solution

The fourth proportional to 130,371.92, 179,890.40 and 80,087.12 is: 110,506.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,371.92 : 179,890.40 = 80,087.12 : x
  2. Step 2: Convert to fraction form
    130,371.92/179,890.40 = 80,087.12/x
  3. Step 3: Cross multiply
    130,371.92x = 179,890.40 × 80,087.12
  4. Step 4: Simplify right side
    130,371.92x = 14,406,904,051.65
  5. Step 5: Solve for x
    x = 14,406,904,051.65/130,371.92
  6. Step 6: Final answer
    x = 110,506.19

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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.