Home / 127,355.36-175,751.19-79,636.64

Finding the Fourth Proportional to 127,355.36, 175,751.19 and 79,636.64

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Solution

The fourth proportional to 127,355.36, 175,751.19 and 79,636.64 is: 109,899.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,355.36 : 175,751.19 = 79,636.64 : x
  2. Step 2: Convert to fraction form
    127,355.36/175,751.19 = 79,636.64/x
  3. Step 3: Cross multiply
    127,355.36x = 175,751.19 × 79,636.64
  4. Step 4: Simplify right side
    127,355.36x = 13,996,233,368.85
  5. Step 5: Solve for x
    x = 13,996,233,368.85/127,355.36
  6. Step 6: Final answer
    x = 109,899.06

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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.