Home / 131,352.63-181,266.83-74,764

Finding the Fourth Proportional to 131,352.63, 181,266.83 and 74,764

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Solution

The fourth proportional to 131,352.63, 181,266.83 and 74,764 is: 103,174.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,352.63 : 181,266.83 = 74,764 : x
  2. Step 2: Convert to fraction form
    131,352.63/181,266.83 = 74,764/x
  3. Step 3: Cross multiply
    131,352.63x = 181,266.83 × 74,764
  4. Step 4: Simplify right side
    131,352.63x = 13,552,233,278.12
  5. Step 5: Solve for x
    x = 13,552,233,278.12/131,352.63
  6. Step 6: Final answer
    x = 103,174.43

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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.