Home / 151,223.73-208,708.62-86,718.21

Finding the Fourth Proportional to 151,223.73, 208,708.62 and 86,718.21

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Solution

The fourth proportional to 151,223.73, 208,708.62 and 86,718.21 is: 119,682.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,223.73 : 208,708.62 = 86,718.21 : x
  2. Step 2: Convert to fraction form
    151,223.73/208,708.62 = 86,718.21/x
  3. Step 3: Cross multiply
    151,223.73x = 208,708.62 × 86,718.21
  4. Step 4: Simplify right side
    151,223.73x = 18,098,836,460.84
  5. Step 5: Solve for x
    x = 18,098,836,460.84/151,223.73
  6. Step 6: Final answer
    x = 119,682.52

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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.