Home / 131,614.70-181,627.58-71,185.28

Finding the Fourth Proportional to 131,614.70, 181,627.58 and 71,185.28

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Solution

The fourth proportional to 131,614.70, 181,627.58 and 71,185.28 is: 98,235.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,614.70 : 181,627.58 = 71,185.28 : x
  2. Step 2: Convert to fraction form
    131,614.70/181,627.58 = 71,185.28/x
  3. Step 3: Cross multiply
    131,614.70x = 181,627.58 × 71,185.28
  4. Step 4: Simplify right side
    131,614.70x = 12,929,210,138.02
  5. Step 5: Solve for x
    x = 12,929,210,138.02/131,614.70
  6. Step 6: Final answer
    x = 98,235.30

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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.