Home / 150,187.81-207,305.31-86,567.95

Finding the Fourth Proportional to 150,187.81, 207,305.31 and 86,567.95

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Solution

The fourth proportional to 150,187.81, 207,305.31 and 86,567.95 is: 119,490.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,187.81 : 207,305.31 = 86,567.95 : x
  2. Step 2: Convert to fraction form
    150,187.81/207,305.31 = 86,567.95/x
  3. Step 3: Cross multiply
    150,187.81x = 207,305.31 × 86,567.95
  4. Step 4: Simplify right side
    150,187.81x = 17,945,995,710.81
  5. Step 5: Solve for x
    x = 17,945,995,710.81/150,187.81
  6. Step 6: Final answer
    x = 119,490.36

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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.