Home / 137,316.60-205,974.90-43,831.80

Finding the Fourth Proportional to 137,316.60, 205,974.90 and 43,831.80

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Solution

The fourth proportional to 137,316.60, 205,974.90 and 43,831.80 is: 65,747.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,316.60 : 205,974.90 = 43,831.80 : x
  2. Step 2: Convert to fraction form
    137,316.60/205,974.90 = 43,831.80/x
  3. Step 3: Cross multiply
    137,316.60x = 205,974.90 × 43,831.80
  4. Step 4: Simplify right side
    137,316.60x = 9,028,250,621.82
  5. Step 5: Solve for x
    x = 9,028,250,621.82/137,316.60
  6. Step 6: Final answer
    x = 65,747.70

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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.