Home / 127,041.72-175,316.37-69,679.86

Finding the Fourth Proportional to 127,041.72, 175,316.37 and 69,679.86

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Solution

The fourth proportional to 127,041.72, 175,316.37 and 69,679.86 is: 96,157.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,041.72 : 175,316.37 = 69,679.86 : x
  2. Step 2: Convert to fraction form
    127,041.72/175,316.37 = 69,679.86/x
  3. Step 3: Cross multiply
    127,041.72x = 175,316.37 × 69,679.86
  4. Step 4: Simplify right side
    127,041.72x = 12,216,019,198.57
  5. Step 5: Solve for x
    x = 12,216,019,198.57/127,041.72
  6. Step 6: Final answer
    x = 96,157.54

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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.