Home / 141,851.37-195,756.21-78,191.45

Finding the Fourth Proportional to 141,851.37, 195,756.21 and 78,191.45

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Solution

The fourth proportional to 141,851.37, 195,756.21 and 78,191.45 is: 107,904.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,851.37 : 195,756.21 = 78,191.45 : x
  2. Step 2: Convert to fraction form
    141,851.37/195,756.21 = 78,191.45/x
  3. Step 3: Cross multiply
    141,851.37x = 195,756.21 × 78,191.45
  4. Step 4: Simplify right side
    141,851.37x = 15,306,461,906.40
  5. Step 5: Solve for x
    x = 15,306,461,906.40/141,851.37
  6. Step 6: Final answer
    x = 107,904.93

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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.