Home / 127,259.60-175,537.53-78,179.75

Finding the Fourth Proportional to 127,259.60, 175,537.53 and 78,179.75

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Solution

The fourth proportional to 127,259.60, 175,537.53 and 78,179.75 is: 107,838.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,259.60 : 175,537.53 = 78,179.75 : x
  2. Step 2: Convert to fraction form
    127,259.60/175,537.53 = 78,179.75/x
  3. Step 3: Cross multiply
    127,259.60x = 175,537.53 × 78,179.75
  4. Step 4: Simplify right side
    127,259.60x = 13,723,480,211.02
  5. Step 5: Solve for x
    x = 13,723,480,211.02/127,259.60
  6. Step 6: Final answer
    x = 107,838.47

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1.5x scale

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.