Home / 127,418.08-175,836.72-70,829.28

Finding the Fourth Proportional to 127,418.08, 175,836.72 and 70,829.28

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Solution

The fourth proportional to 127,418.08, 175,836.72 and 70,829.28 is: 97,744.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,418.08 : 175,836.72 = 70,829.28 : x
  2. Step 2: Convert to fraction form
    127,418.08/175,836.72 = 70,829.28/x
  3. Step 3: Cross multiply
    127,418.08x = 175,836.72 × 70,829.28
  4. Step 4: Simplify right side
    127,418.08x = 12,454,388,275.16
  5. Step 5: Solve for x
    x = 12,454,388,275.16/127,418.08
  6. Step 6: Final answer
    x = 97,744.28

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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.