Home / 130,191.27-179,656.73-72,819.51

Finding the Fourth Proportional to 130,191.27, 179,656.73 and 72,819.51

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Solution

The fourth proportional to 130,191.27, 179,656.73 and 72,819.51 is: 100,486.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,191.27 : 179,656.73 = 72,819.51 : x
  2. Step 2: Convert to fraction form
    130,191.27/179,656.73 = 72,819.51/x
  3. Step 3: Cross multiply
    130,191.27x = 179,656.73 × 72,819.51
  4. Step 4: Simplify right side
    130,191.27x = 13,082,514,682.70
  5. Step 5: Solve for x
    x = 13,082,514,682.70/130,191.27
  6. Step 6: Final answer
    x = 100,486.88

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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.