Home / 142,241.24-196,291.74-78,577.70

Finding the Fourth Proportional to 142,241.24, 196,291.74 and 78,577.70

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Solution

The fourth proportional to 142,241.24, 196,291.74 and 78,577.70 is: 108,436.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,241.24 : 196,291.74 = 78,577.70 : x
  2. Step 2: Convert to fraction form
    142,241.24/196,291.74 = 78,577.70/x
  3. Step 3: Cross multiply
    142,241.24x = 196,291.74 × 78,577.70
  4. Step 4: Simplify right side
    142,241.24x = 15,424,153,458.20
  5. Step 5: Solve for x
    x = 15,424,153,458.20/142,241.24
  6. Step 6: Final answer
    x = 108,436.58

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1.5x scale

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.