Home / 130,296.90-179,814.12-76,581.15

Finding the Fourth Proportional to 130,296.90, 179,814.12 and 76,581.15

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Solution

The fourth proportional to 130,296.90, 179,814.12 and 76,581.15 is: 105,684.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,296.90 : 179,814.12 = 76,581.15 : x
  2. Step 2: Convert to fraction form
    130,296.90/179,814.12 = 76,581.15/x
  3. Step 3: Cross multiply
    130,296.90x = 179,814.12 × 76,581.15
  4. Step 4: Simplify right side
    130,296.90x = 13,770,372,095.84
  5. Step 5: Solve for x
    x = 13,770,372,095.84/130,296.90
  6. Step 6: Final answer
    x = 105,684.57

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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.