Home / 126,757.68-190,136-31,988.08

Finding the Fourth Proportional to 126,757.68, 190,136 and 31,988.08

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Solution

The fourth proportional to 126,757.68, 190,136 and 31,988.08 is: 47,981.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,757.68 : 190,136 = 31,988.08 : x
  2. Step 2: Convert to fraction form
    126,757.68/190,136 = 31,988.08/x
  3. Step 3: Cross multiply
    126,757.68x = 190,136 × 31,988.08
  4. Step 4: Simplify right side
    126,757.68x = 6,082,085,578.88
  5. Step 5: Solve for x
    x = 6,082,085,578.88/126,757.68
  6. Step 6: Final answer
    x = 47,981.99

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.