Home / 121,676.10-182,523.60-42,808.02

Finding the Fourth Proportional to 121,676.10, 182,523.60 and 42,808.02

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Solution

The fourth proportional to 121,676.10, 182,523.60 and 42,808.02 is: 64,215.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,676.10 : 182,523.60 = 42,808.02 : x
  2. Step 2: Convert to fraction form
    121,676.10/182,523.60 = 42,808.02/x
  3. Step 3: Cross multiply
    121,676.10x = 182,523.60 × 42,808.02
  4. Step 4: Simplify right side
    121,676.10x = 7,813,473,919.27
  5. Step 5: Solve for x
    x = 7,813,473,919.27/121,676.10
  6. Step 6: Final answer
    x = 64,215.35

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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.