Home / 121,786.92-182,676.28-42,899.09

Finding the Fourth Proportional to 121,786.92, 182,676.28 and 42,899.09

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Solution

The fourth proportional to 121,786.92, 182,676.28 and 42,899.09 is: 64,347.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,786.92 : 182,676.28 = 42,899.09 : x
  2. Step 2: Convert to fraction form
    121,786.92/182,676.28 = 42,899.09/x
  3. Step 3: Cross multiply
    121,786.92x = 182,676.28 × 42,899.09
  4. Step 4: Simplify right side
    121,786.92x = 7,836,646,176.59
  5. Step 5: Solve for x
    x = 7,836,646,176.59/121,786.92
  6. Step 6: Final answer
    x = 64,347.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.