Home / 127,154.16-175,417.92-76,824

Finding the Fourth Proportional to 127,154.16, 175,417.92 and 76,824

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Solution

The fourth proportional to 127,154.16, 175,417.92 and 76,824 is: 105,984.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,154.16 : 175,417.92 = 76,824 : x
  2. Step 2: Convert to fraction form
    127,154.16/175,417.92 = 76,824/x
  3. Step 3: Cross multiply
    127,154.16x = 175,417.92 × 76,824
  4. Step 4: Simplify right side
    127,154.16x = 13,476,306,286.08
  5. Step 5: Solve for x
    x = 13,476,306,286.08/127,154.16
  6. Step 6: Final answer
    x = 105,984.00

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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.