Home / 131,337.81-181,247.00-74,749.14

Finding the Fourth Proportional to 131,337.81, 181,247.00 and 74,749.14

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Solution

The fourth proportional to 131,337.81, 181,247.00 and 74,749.14 is: 103,154.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,337.81 : 181,247.00 = 74,749.14 : x
  2. Step 2: Convert to fraction form
    131,337.81/181,247.00 = 74,749.14/x
  3. Step 3: Cross multiply
    131,337.81x = 181,247.00 × 74,749.14
  4. Step 4: Simplify right side
    131,337.81x = 13,548,057,003.83
  5. Step 5: Solve for x
    x = 13,548,057,003.83/131,337.81
  6. Step 6: Final answer
    x = 103,154.28

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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.