Home / 127,207.12-175,621.98-79,525.06

Finding the Fourth Proportional to 127,207.12, 175,621.98 and 79,525.06

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Solution

The fourth proportional to 127,207.12, 175,621.98 and 79,525.06 is: 109,792.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,207.12 : 175,621.98 = 79,525.06 : x
  2. Step 2: Convert to fraction form
    127,207.12/175,621.98 = 79,525.06/x
  3. Step 3: Cross multiply
    127,207.12x = 175,621.98 × 79,525.06
  4. Step 4: Simplify right side
    127,207.12x = 13,966,348,496.82
  5. Step 5: Solve for x
    x = 13,966,348,496.82/127,207.12
  6. Step 6: Final answer
    x = 109,792.19

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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.