Home / 131,801.36-181,885.58-71,372.16

Finding the Fourth Proportional to 131,801.36, 181,885.58 and 71,372.16

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Solution

The fourth proportional to 131,801.36, 181,885.58 and 71,372.16 is: 98,493.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,801.36 : 181,885.58 = 71,372.16 : x
  2. Step 2: Convert to fraction form
    131,801.36/181,885.58 = 71,372.16/x
  3. Step 3: Cross multiply
    131,801.36x = 181,885.58 × 71,372.16
  4. Step 4: Simplify right side
    131,801.36x = 12,981,566,717.45
  5. Step 5: Solve for x
    x = 12,981,566,717.45/131,801.36
  6. Step 6: Final answer
    x = 98,493.42

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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.