Home / 141,403.18-195,134.62-77,740.42

Finding the Fourth Proportional to 141,403.18, 195,134.62 and 77,740.42

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Solution

The fourth proportional to 141,403.18, 195,134.62 and 77,740.42 is: 107,280.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,403.18 : 195,134.62 = 77,740.42 : x
  2. Step 2: Convert to fraction form
    141,403.18/195,134.62 = 77,740.42/x
  3. Step 3: Cross multiply
    141,403.18x = 195,134.62 × 77,740.42
  4. Step 4: Simplify right side
    141,403.18x = 15,169,847,315.34
  5. Step 5: Solve for x
    x = 15,169,847,315.34/141,403.18
  6. Step 6: Final answer
    x = 107,280.81

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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.