Home / 95,012.16-142,542.52-78,172.24

Finding the Fourth Proportional to 95,012.16, 142,542.52 and 78,172.24

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Solution

The fourth proportional to 95,012.16, 142,542.52 and 78,172.24 is: 117,278.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,012.16 : 142,542.52 = 78,172.24 : x
  2. Step 2: Convert to fraction form
    95,012.16/142,542.52 = 78,172.24/x
  3. Step 3: Cross multiply
    95,012.16x = 142,542.52 × 78,172.24
  4. Step 4: Simplify right side
    95,012.16x = 11,142,868,083.64
  5. Step 5: Solve for x
    x = 11,142,868,083.64/95,012.16
  6. Step 6: Final answer
    x = 117,278.34

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.