Home / 141,691.50-195,534.54-78,035.22

Finding the Fourth Proportional to 141,691.50, 195,534.54 and 78,035.22

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Solution

The fourth proportional to 141,691.50, 195,534.54 and 78,035.22 is: 107,688.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,691.50 : 195,534.54 = 78,035.22 : x
  2. Step 2: Convert to fraction form
    141,691.50/195,534.54 = 78,035.22/x
  3. Step 3: Cross multiply
    141,691.50x = 195,534.54 × 78,035.22
  4. Step 4: Simplify right side
    141,691.50x = 15,258,580,846.50
  5. Step 5: Solve for x
    x = 15,258,580,846.50/141,691.50
  6. Step 6: Final answer
    x = 107,688.75

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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.