Home / 141,904.80-195,825.60-78,242.76

Finding the Fourth Proportional to 141,904.80, 195,825.60 and 78,242.76

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Solution

The fourth proportional to 141,904.80, 195,825.60 and 78,242.76 is: 107,973.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,904.80 : 195,825.60 = 78,242.76 : x
  2. Step 2: Convert to fraction form
    141,904.80/195,825.60 = 78,242.76/x
  3. Step 3: Cross multiply
    141,904.80x = 195,825.60 × 78,242.76
  4. Step 4: Simplify right side
    141,904.80x = 15,321,935,422.66
  5. Step 5: Solve for x
    x = 15,321,935,422.66/141,904.80
  6. Step 6: Final answer
    x = 107,973.34

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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.