Home / 187,105.01-258,131.61-115,360.47

Finding the Fourth Proportional to 187,105.01, 258,131.61 and 115,360.47

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Solution

The fourth proportional to 187,105.01, 258,131.61 and 115,360.47 is: 159,152.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,105.01 : 258,131.61 = 115,360.47 : x
  2. Step 2: Convert to fraction form
    187,105.01/258,131.61 = 115,360.47/x
  3. Step 3: Cross multiply
    187,105.01x = 258,131.61 × 115,360.47
  4. Step 4: Simplify right side
    187,105.01x = 29,778,183,851.46
  5. Step 5: Solve for x
    x = 29,778,183,851.46/187,105.01
  6. Step 6: Final answer
    x = 159,152.26

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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.