Home / 127,612.54-176,102.31-71,022.70

Finding the Fourth Proportional to 127,612.54, 176,102.31 and 71,022.70

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Solution

The fourth proportional to 127,612.54, 176,102.31 and 71,022.70 is: 98,009.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,612.54 : 176,102.31 = 71,022.70 : x
  2. Step 2: Convert to fraction form
    127,612.54/176,102.31 = 71,022.70/x
  3. Step 3: Cross multiply
    127,612.54x = 176,102.31 × 71,022.70
  4. Step 4: Simplify right side
    127,612.54x = 12,507,261,532.44
  5. Step 5: Solve for x
    x = 12,507,261,532.44/127,612.54
  6. Step 6: Final answer
    x = 98,009.66

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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.