Home / 141,495.40-195,262.56-77,831.80

Finding the Fourth Proportional to 141,495.40, 195,262.56 and 77,831.80

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Solution

The fourth proportional to 141,495.40, 195,262.56 and 77,831.80 is: 107,407.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,495.40 : 195,262.56 = 77,831.80 : x
  2. Step 2: Convert to fraction form
    141,495.40/195,262.56 = 77,831.80/x
  3. Step 3: Cross multiply
    141,495.40x = 195,262.56 × 77,831.80
  4. Step 4: Simplify right side
    141,495.40x = 15,197,636,517.41
  5. Step 5: Solve for x
    x = 15,197,636,517.41/141,495.40
  6. Step 6: Final answer
    x = 107,407.28

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1.5x scale

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.