Home / 178,831.40-267,809.70-85,227.80

Finding the Fourth Proportional to 178,831.40, 267,809.70 and 85,227.80

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Solution

The fourth proportional to 178,831.40, 267,809.70 and 85,227.80 is: 127,633.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,831.40 : 267,809.70 = 85,227.80 : x
  2. Step 2: Convert to fraction form
    178,831.40/267,809.70 = 85,227.80/x
  3. Step 3: Cross multiply
    178,831.40x = 267,809.70 × 85,227.80
  4. Step 4: Simplify right side
    178,831.40x = 22,824,831,549.66
  5. Step 5: Solve for x
    x = 22,824,831,549.66/178,831.40
  6. Step 6: Final answer
    x = 127,633.24

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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.