Home / 141,402.49-195,136.77-77,740.75

Finding the Fourth Proportional to 141,402.49, 195,136.77 and 77,740.75

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Solution

The fourth proportional to 141,402.49, 195,136.77 and 77,740.75 is: 107,282.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,402.49 : 195,136.77 = 77,740.75 : x
  2. Step 2: Convert to fraction form
    141,402.49/195,136.77 = 77,740.75/x
  3. Step 3: Cross multiply
    141,402.49x = 195,136.77 × 77,740.75
  4. Step 4: Simplify right side
    141,402.49x = 15,170,078,852.38
  5. Step 5: Solve for x
    x = 15,170,078,852.38/141,402.49
  6. Step 6: Final answer
    x = 107,282.97

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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.