Home / 120,899.40-181,349.10-103,014.60

Finding the Fourth Proportional to 120,899.40, 181,349.10 and 103,014.60

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Solution

The fourth proportional to 120,899.40, 181,349.10 and 103,014.60 is: 154,521.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,899.40 : 181,349.10 = 103,014.60 : x
  2. Step 2: Convert to fraction form
    120,899.40/181,349.10 = 103,014.60/x
  3. Step 3: Cross multiply
    120,899.40x = 181,349.10 × 103,014.60
  4. Step 4: Simplify right side
    120,899.40x = 18,681,604,996.86
  5. Step 5: Solve for x
    x = 18,681,604,996.86/120,899.40
  6. Step 6: Final answer
    x = 154,521.90

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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.