Home / 127,207.80-175,560.71-72,765.05

Finding the Fourth Proportional to 127,207.80, 175,560.71 and 72,765.05

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Solution

The fourth proportional to 127,207.80, 175,560.71 and 72,765.05 is: 100,423.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,207.80 : 175,560.71 = 72,765.05 : x
  2. Step 2: Convert to fraction form
    127,207.80/175,560.71 = 72,765.05/x
  3. Step 3: Cross multiply
    127,207.80x = 175,560.71 × 72,765.05
  4. Step 4: Simplify right side
    127,207.80x = 12,774,682,599.56
  5. Step 5: Solve for x
    x = 12,774,682,599.56/127,207.80
  6. Step 6: Final answer
    x = 100,423.74

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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.