Home / 131,827.53-181,921.93-71,398.17

Finding the Fourth Proportional to 131,827.53, 181,921.93 and 71,398.17

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Solution

The fourth proportional to 131,827.53, 181,921.93 and 71,398.17 is: 98,529.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,827.53 : 181,921.93 = 71,398.17 : x
  2. Step 2: Convert to fraction form
    131,827.53/181,921.93 = 71,398.17/x
  3. Step 3: Cross multiply
    131,827.53x = 181,921.93 × 71,398.17
  4. Step 4: Simplify right side
    131,827.53x = 12,988,893,062.60
  5. Step 5: Solve for x
    x = 12,988,893,062.60/131,827.53
  6. Step 6: Final answer
    x = 98,529.45

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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.