Home / 132,106.33-182,339.16-81,131.21

Finding the Fourth Proportional to 132,106.33, 182,339.16 and 81,131.21

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Solution

The fourth proportional to 132,106.33, 182,339.16 and 81,131.21 is: 111,980.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,106.33 : 182,339.16 = 81,131.21 : x
  2. Step 2: Convert to fraction form
    132,106.33/182,339.16 = 81,131.21/x
  3. Step 3: Cross multiply
    132,106.33x = 182,339.16 × 81,131.21
  4. Step 4: Simplify right side
    132,106.33x = 14,793,396,681.18
  5. Step 5: Solve for x
    x = 14,793,396,681.18/132,106.33
  6. Step 6: Final answer
    x = 111,980.98

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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.