Home / 127,318.75-175,716.08-77,018.11

Finding the Fourth Proportional to 127,318.75, 175,716.08 and 77,018.11

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Solution

The fourth proportional to 127,318.75, 175,716.08 and 77,018.11 is: 106,294.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,318.75 : 175,716.08 = 77,018.11 : x
  2. Step 2: Convert to fraction form
    127,318.75/175,716.08 = 77,018.11/x
  3. Step 3: Cross multiply
    127,318.75x = 175,716.08 × 77,018.11
  4. Step 4: Simplify right side
    127,318.75x = 13,533,319,993.12
  5. Step 5: Solve for x
    x = 13,533,319,993.12/127,318.75
  6. Step 6: Final answer
    x = 106,294.79

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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.