Home / 142,325.44-196,381.20-85,739.92

Finding the Fourth Proportional to 142,325.44, 196,381.20 and 85,739.92

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Solution

The fourth proportional to 142,325.44, 196,381.20 and 85,739.92 is: 118,304.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,325.44 : 196,381.20 = 85,739.92 : x
  2. Step 2: Convert to fraction form
    142,325.44/196,381.20 = 85,739.92/x
  3. Step 3: Cross multiply
    142,325.44x = 196,381.20 × 85,739.92
  4. Step 4: Simplify right side
    142,325.44x = 16,837,708,377.50
  5. Step 5: Solve for x
    x = 16,837,708,377.50/142,325.44
  6. Step 6: Final answer
    x = 118,304.28

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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.