Home / 129,151.23-193,160.22-115,019.34

Finding the Fourth Proportional to 129,151.23, 193,160.22 and 115,019.34

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Solution

The fourth proportional to 129,151.23, 193,160.22 and 115,019.34 is: 172,024.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,151.23 : 193,160.22 = 115,019.34 : x
  2. Step 2: Convert to fraction form
    129,151.23/193,160.22 = 115,019.34/x
  3. Step 3: Cross multiply
    129,151.23x = 193,160.22 × 115,019.34
  4. Step 4: Simplify right side
    129,151.23x = 22,217,161,018.65
  5. Step 5: Solve for x
    x = 22,217,161,018.65/129,151.23
  6. Step 6: Final answer
    x = 172,024.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.