Home / 150,964.56-208,326.60-86,431.66

Finding the Fourth Proportional to 150,964.56, 208,326.60 and 86,431.66

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Solution

The fourth proportional to 150,964.56, 208,326.60 and 86,431.66 is: 119,273.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,964.56 : 208,326.60 = 86,431.66 : x
  2. Step 2: Convert to fraction form
    150,964.56/208,326.60 = 86,431.66/x
  3. Step 3: Cross multiply
    150,964.56x = 208,326.60 × 86,431.66
  4. Step 4: Simplify right side
    150,964.56x = 18,006,013,860.16
  5. Step 5: Solve for x
    x = 18,006,013,860.16/150,964.56
  6. Step 6: Final answer
    x = 119,273.12

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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.