Home / 131,826.15-181,920.53-71,396.64

Finding the Fourth Proportional to 131,826.15, 181,920.53 and 71,396.64

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Solution

The fourth proportional to 131,826.15, 181,920.53 and 71,396.64 is: 98,527.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,826.15 : 181,920.53 = 71,396.64 : x
  2. Step 2: Convert to fraction form
    131,826.15/181,920.53 = 71,396.64/x
  3. Step 3: Cross multiply
    131,826.15x = 181,920.53 × 71,396.64
  4. Step 4: Simplify right side
    131,826.15x = 12,988,514,767.51
  5. Step 5: Solve for x
    x = 12,988,514,767.51/131,826.15
  6. Step 6: Final answer
    x = 98,527.60

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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.