Home / 127,697.50-176,222.55-71,119.81

Finding the Fourth Proportional to 127,697.50, 176,222.55 and 71,119.81

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Solution

The fourth proportional to 127,697.50, 176,222.55 and 71,119.81 is: 98,145.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,697.50 : 176,222.55 = 71,119.81 : x
  2. Step 2: Convert to fraction form
    127,697.50/176,222.55 = 71,119.81/x
  3. Step 3: Cross multiply
    127,697.50x = 176,222.55 × 71,119.81
  4. Step 4: Simplify right side
    127,697.50x = 12,532,914,273.72
  5. Step 5: Solve for x
    x = 12,532,914,273.72/127,697.50
  6. Step 6: Final answer
    x = 98,145.34

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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.