Home / 102,045.72-140,831.97-56,732.58

Finding the Fourth Proportional to 102,045.72, 140,831.97 and 56,732.58

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Solution

The fourth proportional to 102,045.72, 140,831.97 and 56,732.58 is: 78,295.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,045.72 : 140,831.97 = 56,732.58 : x
  2. Step 2: Convert to fraction form
    102,045.72/140,831.97 = 56,732.58/x
  3. Step 3: Cross multiply
    102,045.72x = 140,831.97 × 56,732.58
  4. Step 4: Simplify right side
    102,045.72x = 7,989,761,004.58
  5. Step 5: Solve for x
    x = 7,989,761,004.58/102,045.72
  6. Step 6: Final answer
    x = 78,295.90

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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.