Home / 131,337.36-181,247.76-74,754

Finding the Fourth Proportional to 131,337.36, 181,247.76 and 74,754

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Solution

The fourth proportional to 131,337.36, 181,247.76 and 74,754 is: 103,161.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,337.36 : 181,247.76 = 74,754 : x
  2. Step 2: Convert to fraction form
    131,337.36/181,247.76 = 74,754/x
  3. Step 3: Cross multiply
    131,337.36x = 181,247.76 × 74,754
  4. Step 4: Simplify right side
    131,337.36x = 13,548,995,051.04
  5. Step 5: Solve for x
    x = 13,548,995,051.04/131,337.36
  6. Step 6: Final answer
    x = 103,161.77

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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.