Home / 125,344.16-172,974.48-77,588

Finding the Fourth Proportional to 125,344.16, 172,974.48 and 77,588

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Solution

The fourth proportional to 125,344.16, 172,974.48 and 77,588 is: 107,071.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,344.16 : 172,974.48 = 77,588 : x
  2. Step 2: Convert to fraction form
    125,344.16/172,974.48 = 77,588/x
  3. Step 3: Cross multiply
    125,344.16x = 172,974.48 × 77,588
  4. Step 4: Simplify right side
    125,344.16x = 13,420,743,954.24
  5. Step 5: Solve for x
    x = 13,420,743,954.24/125,344.16
  6. Step 6: Final answer
    x = 107,071.15

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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.