Home / 127,119.12-175,422.60-70,530.72

Finding the Fourth Proportional to 127,119.12, 175,422.60 and 70,530.72

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Solution

The fourth proportional to 127,119.12, 175,422.60 and 70,530.72 is: 97,331.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,119.12 : 175,422.60 = 70,530.72 : x
  2. Step 2: Convert to fraction form
    127,119.12/175,422.60 = 70,530.72/x
  3. Step 3: Cross multiply
    127,119.12x = 175,422.60 × 70,530.72
  4. Step 4: Simplify right side
    127,119.12x = 12,372,682,282.27
  5. Step 5: Solve for x
    x = 12,372,682,282.27/127,119.12
  6. Step 6: Final answer
    x = 97,331.40

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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.