Home / 141,723.12-195,578.10-78,061.08

Finding the Fourth Proportional to 141,723.12, 195,578.10 and 78,061.08

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Solution

The fourth proportional to 141,723.12, 195,578.10 and 78,061.08 is: 107,724.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,723.12 : 195,578.10 = 78,061.08 : x
  2. Step 2: Convert to fraction form
    141,723.12/195,578.10 = 78,061.08/x
  3. Step 3: Cross multiply
    141,723.12x = 195,578.10 × 78,061.08
  4. Step 4: Simplify right side
    141,723.12x = 15,267,037,710.35
  5. Step 5: Solve for x
    x = 15,267,037,710.35/141,723.12
  6. Step 6: Final answer
    x = 107,724.40

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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.