Home / 142,058.96-196,046.06-77,531.72

Finding the Fourth Proportional to 142,058.96, 196,046.06 and 77,531.72

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Solution

The fourth proportional to 142,058.96, 196,046.06 and 77,531.72 is: 106,996.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,058.96 : 196,046.06 = 77,531.72 : x
  2. Step 2: Convert to fraction form
    142,058.96/196,046.06 = 77,531.72/x
  3. Step 3: Cross multiply
    142,058.96x = 196,046.06 × 77,531.72
  4. Step 4: Simplify right side
    142,058.96x = 15,199,787,444.62
  5. Step 5: Solve for x
    x = 15,199,787,444.62/142,058.96
  6. Step 6: Final answer
    x = 106,996.33

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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.