Home / 131,537.12-181,667.76-121,583.84

Finding the Fourth Proportional to 131,537.12, 181,667.76 and 121,583.84

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Solution

The fourth proportional to 131,537.12, 181,667.76 and 121,583.84 is: 167,921.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,537.12 : 181,667.76 = 121,583.84 : x
  2. Step 2: Convert to fraction form
    131,537.12/181,667.76 = 121,583.84/x
  3. Step 3: Cross multiply
    131,537.12x = 181,667.76 × 121,583.84
  4. Step 4: Simplify right side
    131,537.12x = 22,087,863,865.00
  5. Step 5: Solve for x
    x = 22,087,863,865.00/131,537.12
  6. Step 6: Final answer
    x = 167,921.15

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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.