Home / 130,499.93-180,176.67-100,231.14

Finding the Fourth Proportional to 130,499.93, 180,176.67 and 100,231.14

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Solution

The fourth proportional to 130,499.93, 180,176.67 and 100,231.14 is: 138,385.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,499.93 : 180,176.67 = 100,231.14 : x
  2. Step 2: Convert to fraction form
    130,499.93/180,176.67 = 100,231.14/x
  3. Step 3: Cross multiply
    130,499.93x = 180,176.67 × 100,231.14
  4. Step 4: Simplify right side
    130,499.93x = 18,059,313,035.50
  5. Step 5: Solve for x
    x = 18,059,313,035.50/130,499.93
  6. Step 6: Final answer
    x = 138,385.61

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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.