Home / 120,969.48-181,506.24-42,040.68

Finding the Fourth Proportional to 120,969.48, 181,506.24 and 42,040.68

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Solution

The fourth proportional to 120,969.48, 181,506.24 and 42,040.68 is: 63,079.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,969.48 : 181,506.24 = 42,040.68 : x
  2. Step 2: Convert to fraction form
    120,969.48/181,506.24 = 42,040.68/x
  3. Step 3: Cross multiply
    120,969.48x = 181,506.24 × 42,040.68
  4. Step 4: Simplify right side
    120,969.48x = 7,630,645,753.84
  5. Step 5: Solve for x
    x = 7,630,645,753.84/120,969.48
  6. Step 6: Final answer
    x = 63,079.10

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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.