Home / 125,418.24-173,076-68,828.16

Finding the Fourth Proportional to 125,418.24, 173,076 and 68,828.16

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Solution

The fourth proportional to 125,418.24, 173,076 and 68,828.16 is: 94,982.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,418.24 : 173,076 = 68,828.16 : x
  2. Step 2: Convert to fraction form
    125,418.24/173,076 = 68,828.16/x
  3. Step 3: Cross multiply
    125,418.24x = 173,076 × 68,828.16
  4. Step 4: Simplify right side
    125,418.24x = 11,912,502,620.16
  5. Step 5: Solve for x
    x = 11,912,502,620.16/125,418.24
  6. Step 6: Final answer
    x = 94,982.22

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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.