Home / 132,018.72-181,877.85-108,005.46

Finding the Fourth Proportional to 132,018.72, 181,877.85 and 108,005.46

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Solution

The fourth proportional to 132,018.72, 181,877.85 and 108,005.46 is: 148,795.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,018.72 : 181,877.85 = 108,005.46 : x
  2. Step 2: Convert to fraction form
    132,018.72/181,877.85 = 108,005.46/x
  3. Step 3: Cross multiply
    132,018.72x = 181,877.85 × 108,005.46
  4. Step 4: Simplify right side
    132,018.72x = 19,643,800,853.06
  5. Step 5: Solve for x
    x = 19,643,800,853.06/132,018.72
  6. Step 6: Final answer
    x = 148,795.57

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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.