Home / 121,787.18-182,676.65-42,899.34

Finding the Fourth Proportional to 121,787.18, 182,676.65 and 42,899.34

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Solution

The fourth proportional to 121,787.18, 182,676.65 and 42,899.34 is: 64,347.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,787.18 : 182,676.65 = 42,899.34 : x
  2. Step 2: Convert to fraction form
    121,787.18/182,676.65 = 42,899.34/x
  3. Step 3: Cross multiply
    121,787.18x = 182,676.65 × 42,899.34
  4. Step 4: Simplify right side
    121,787.18x = 7,836,707,503.91
  5. Step 5: Solve for x
    x = 7,836,707,503.91/121,787.18
  6. Step 6: Final answer
    x = 64,347.56

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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.