Home / 127,136.26-175,482.08-79,360.84

Finding the Fourth Proportional to 127,136.26, 175,482.08 and 79,360.84

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Solution

The fourth proportional to 127,136.26, 175,482.08 and 79,360.84 is: 109,539.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,136.26 : 175,482.08 = 79,360.84 : x
  2. Step 2: Convert to fraction form
    127,136.26/175,482.08 = 79,360.84/x
  3. Step 3: Cross multiply
    127,136.26x = 175,482.08 × 79,360.84
  4. Step 4: Simplify right side
    127,136.26x = 13,926,405,273.75
  5. Step 5: Solve for x
    x = 13,926,405,273.75/127,136.26
  6. Step 6: Final answer
    x = 109,539.21

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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.