Home / 142,184.44-213,407.86-72,112.96

Finding the Fourth Proportional to 142,184.44, 213,407.86 and 72,112.96

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Solution

The fourth proportional to 142,184.44, 213,407.86 and 72,112.96 is: 108,235.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,184.44 : 213,407.86 = 72,112.96 : x
  2. Step 2: Convert to fraction form
    142,184.44/213,407.86 = 72,112.96/x
  3. Step 3: Cross multiply
    142,184.44x = 213,407.86 × 72,112.96
  4. Step 4: Simplify right side
    142,184.44x = 15,389,472,471.87
  5. Step 5: Solve for x
    x = 15,389,472,471.87/142,184.44
  6. Step 6: Final answer
    x = 108,235.98

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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.