Home / 127,136.10-175,513.08-89,578.02

Finding the Fourth Proportional to 127,136.10, 175,513.08 and 89,578.02

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Solution

The fourth proportional to 127,136.10, 175,513.08 and 89,578.02 is: 123,663.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,136.10 : 175,513.08 = 89,578.02 : x
  2. Step 2: Convert to fraction form
    127,136.10/175,513.08 = 89,578.02/x
  3. Step 3: Cross multiply
    127,136.10x = 175,513.08 × 89,578.02
  4. Step 4: Simplify right side
    127,136.10x = 15,722,114,190.50
  5. Step 5: Solve for x
    x = 15,722,114,190.50/127,136.10
  6. Step 6: Final answer
    x = 123,663.65

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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.