Home / 134,570.72-185,708.16-77,212.32

Finding the Fourth Proportional to 134,570.72, 185,708.16 and 77,212.32

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Solution

The fourth proportional to 134,570.72, 185,708.16 and 77,212.32 is: 106,553.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,570.72 : 185,708.16 = 77,212.32 : x
  2. Step 2: Convert to fraction form
    134,570.72/185,708.16 = 77,212.32/x
  3. Step 3: Cross multiply
    134,570.72x = 185,708.16 × 77,212.32
  4. Step 4: Simplify right side
    134,570.72x = 14,338,957,876.53
  5. Step 5: Solve for x
    x = 14,338,957,876.53/134,570.72
  6. Step 6: Final answer
    x = 106,553.33

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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.