Home / 131,827.79-181,921.44-71,397.05

Finding the Fourth Proportional to 131,827.79, 181,921.44 and 71,397.05

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Solution

The fourth proportional to 131,827.79, 181,921.44 and 71,397.05 is: 98,527.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,827.79 : 181,921.44 = 71,397.05 : x
  2. Step 2: Convert to fraction form
    131,827.79/181,921.44 = 71,397.05/x
  3. Step 3: Cross multiply
    131,827.79x = 181,921.44 × 71,397.05
  4. Step 4: Simplify right side
    131,827.79x = 12,988,652,903.47
  5. Step 5: Solve for x
    x = 12,988,652,903.47/131,827.79
  6. Step 6: Final answer
    x = 98,527.43

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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.