Home / 140,831.87-194,345.02-77,165.56

Finding the Fourth Proportional to 140,831.87, 194,345.02 and 77,165.56

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Solution

The fourth proportional to 140,831.87, 194,345.02 and 77,165.56 is: 106,486.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,831.87 : 194,345.02 = 77,165.56 : x
  2. Step 2: Convert to fraction form
    140,831.87/194,345.02 = 77,165.56/x
  3. Step 3: Cross multiply
    140,831.87x = 194,345.02 × 77,165.56
  4. Step 4: Simplify right side
    140,831.87x = 14,996,742,640.90
  5. Step 5: Solve for x
    x = 14,996,742,640.90/140,831.87
  6. Step 6: Final answer
    x = 106,486.86

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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.