Home / 187,180.67-258,423.82-121,831.90

Finding the Fourth Proportional to 187,180.67, 258,423.82 and 121,831.90

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Solution

The fourth proportional to 187,180.67, 258,423.82 and 121,831.90 is: 168,202.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,180.67 : 258,423.82 = 121,831.90 : x
  2. Step 2: Convert to fraction form
    187,180.67/258,423.82 = 121,831.90/x
  3. Step 3: Cross multiply
    187,180.67x = 258,423.82 × 121,831.90
  4. Step 4: Simplify right side
    187,180.67x = 31,484,264,045.22
  5. Step 5: Solve for x
    x = 31,484,264,045.22/187,180.67
  6. Step 6: Final answer
    x = 168,202.54

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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.