Home / 127,880.10-176,428.26-74,135.52

Finding the Fourth Proportional to 127,880.10, 176,428.26 and 74,135.52

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Solution

The fourth proportional to 127,880.10, 176,428.26 and 74,135.52 is: 102,280.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,880.10 : 176,428.26 = 74,135.52 : x
  2. Step 2: Convert to fraction form
    127,880.10/176,428.26 = 74,135.52/x
  3. Step 3: Cross multiply
    127,880.10x = 176,428.26 × 74,135.52
  4. Step 4: Simplify right side
    127,880.10x = 13,079,600,797.80
  5. Step 5: Solve for x
    x = 13,079,600,797.80/127,880.10
  6. Step 6: Final answer
    x = 102,280.19

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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.