Home / 131,652.74-181,680.54-71,223.44

Finding the Fourth Proportional to 131,652.74, 181,680.54 and 71,223.44

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Solution

The fourth proportional to 131,652.74, 181,680.54 and 71,223.44 is: 98,288.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,652.74 : 181,680.54 = 71,223.44 : x
  2. Step 2: Convert to fraction form
    131,652.74/181,680.54 = 71,223.44/x
  3. Step 3: Cross multiply
    131,652.74x = 181,680.54 × 71,223.44
  4. Step 4: Simplify right side
    131,652.74x = 12,939,911,864.37
  5. Step 5: Solve for x
    x = 12,939,911,864.37/131,652.74
  6. Step 6: Final answer
    x = 98,288.21

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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.