Home / 141,493.12-195,259.20-77,831.68

Finding the Fourth Proportional to 141,493.12, 195,259.20 and 77,831.68

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Solution

The fourth proportional to 141,493.12, 195,259.20 and 77,831.68 is: 107,407.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,493.12 : 195,259.20 = 77,831.68 : x
  2. Step 2: Convert to fraction form
    141,493.12/195,259.20 = 77,831.68/x
  3. Step 3: Cross multiply
    141,493.12x = 195,259.20 × 77,831.68
  4. Step 4: Simplify right side
    141,493.12x = 15,197,351,571.46
  5. Step 5: Solve for x
    x = 15,197,351,571.46/141,493.12
  6. Step 6: Final answer
    x = 107,407.00

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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.