Home / 130,291.65-179,806.88-76,575.90

Finding the Fourth Proportional to 130,291.65, 179,806.88 and 76,575.90

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Solution

The fourth proportional to 130,291.65, 179,806.88 and 76,575.90 is: 105,677.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,291.65 : 179,806.88 = 76,575.90 : x
  2. Step 2: Convert to fraction form
    130,291.65/179,806.88 = 76,575.90/x
  3. Step 3: Cross multiply
    130,291.65x = 179,806.88 × 76,575.90
  4. Step 4: Simplify right side
    130,291.65x = 13,768,873,279.31
  5. Step 5: Solve for x
    x = 13,768,873,279.31/130,291.65
  6. Step 6: Final answer
    x = 105,677.33

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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.