Home / 141,493.50-195,262.66-77,831.76

Finding the Fourth Proportional to 141,493.50, 195,262.66 and 77,831.76

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Solution

The fourth proportional to 141,493.50, 195,262.66 and 77,831.76 is: 107,408.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,493.50 : 195,262.66 = 77,831.76 : x
  2. Step 2: Convert to fraction form
    141,493.50/195,262.66 = 77,831.76/x
  3. Step 3: Cross multiply
    141,493.50x = 195,262.66 × 77,831.76
  4. Step 4: Simplify right side
    141,493.50x = 15,197,636,490.08
  5. Step 5: Solve for x
    x = 15,197,636,490.08/141,493.50
  6. Step 6: Final answer
    x = 107,408.73

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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.