Home / 131,535.34-181,536.54-74,186.44

Finding the Fourth Proportional to 131,535.34, 181,536.54 and 74,186.44

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Solution

The fourth proportional to 131,535.34, 181,536.54 and 74,186.44 is: 102,387.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,535.34 : 181,536.54 = 74,186.44 : x
  2. Step 2: Convert to fraction form
    131,535.34/181,536.54 = 74,186.44/x
  3. Step 3: Cross multiply
    131,535.34x = 181,536.54 × 74,186.44
  4. Step 4: Simplify right side
    131,535.34x = 13,467,549,632.52
  5. Step 5: Solve for x
    x = 13,467,549,632.52/131,535.34
  6. Step 6: Final answer
    x = 102,387.31

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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.