Home / 131,058.96-180,860.40-77,344.08

Finding the Fourth Proportional to 131,058.96, 180,860.40 and 77,344.08

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Solution

The fourth proportional to 131,058.96, 180,860.40 and 77,344.08 is: 106,734.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,058.96 : 180,860.40 = 77,344.08 : x
  2. Step 2: Convert to fraction form
    131,058.96/180,860.40 = 77,344.08/x
  3. Step 3: Cross multiply
    131,058.96x = 180,860.40 × 77,344.08
  4. Step 4: Simplify right side
    131,058.96x = 13,988,481,246.43
  5. Step 5: Solve for x
    x = 13,988,481,246.43/131,058.96
  6. Step 6: Final answer
    x = 106,734.26

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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.