Home / 131,222.52-181,083.84-74,630.28

Finding the Fourth Proportional to 131,222.52, 181,083.84 and 74,630.28

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Solution

The fourth proportional to 131,222.52, 181,083.84 and 74,630.28 is: 102,987.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,222.52 : 181,083.84 = 74,630.28 : x
  2. Step 2: Convert to fraction form
    131,222.52/181,083.84 = 74,630.28/x
  3. Step 3: Cross multiply
    131,222.52x = 181,083.84 × 74,630.28
  4. Step 4: Simplify right side
    131,222.52x = 13,514,337,682.68
  5. Step 5: Solve for x
    x = 13,514,337,682.68/131,222.52
  6. Step 6: Final answer
    x = 102,987.95

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1.5x scale

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.