Home / 131,724.63-181,780.47-71,296.07

Finding the Fourth Proportional to 131,724.63, 181,780.47 and 71,296.07

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Solution

The fourth proportional to 131,724.63, 181,780.47 and 71,296.07 is: 98,388.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,724.63 : 181,780.47 = 71,296.07 : x
  2. Step 2: Convert to fraction form
    131,724.63/181,780.47 = 71,296.07/x
  3. Step 3: Cross multiply
    131,724.63x = 181,780.47 × 71,296.07
  4. Step 4: Simplify right side
    131,724.63x = 12,960,232,204.85
  5. Step 5: Solve for x
    x = 12,960,232,204.85/131,724.63
  6. Step 6: Final answer
    x = 98,388.83

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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.