Home / 127,539.38-176,004.21-70,949.54

Finding the Fourth Proportional to 127,539.38, 176,004.21 and 70,949.54

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Solution

The fourth proportional to 127,539.38, 176,004.21 and 70,949.54 is: 97,910.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,539.38 : 176,004.21 = 70,949.54 : x
  2. Step 2: Convert to fraction form
    127,539.38/176,004.21 = 70,949.54/x
  3. Step 3: Cross multiply
    127,539.38x = 176,004.21 × 70,949.54
  4. Step 4: Simplify right side
    127,539.38x = 12,487,417,737.56
  5. Step 5: Solve for x
    x = 12,487,417,737.56/127,539.38
  6. Step 6: Final answer
    x = 97,910.29

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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.