Home / 151,021.29-208,410.17-83,042.65

Finding the Fourth Proportional to 151,021.29, 208,410.17 and 83,042.65

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Solution

The fourth proportional to 151,021.29, 208,410.17 and 83,042.65 is: 114,599.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,021.29 : 208,410.17 = 83,042.65 : x
  2. Step 2: Convert to fraction form
    151,021.29/208,410.17 = 83,042.65/x
  3. Step 3: Cross multiply
    151,021.29x = 208,410.17 × 83,042.65
  4. Step 4: Simplify right side
    151,021.29x = 17,306,932,649.05
  5. Step 5: Solve for x
    x = 17,306,932,649.05/151,021.29
  6. Step 6: Final answer
    x = 114,599.29

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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.