Home / 120,967.60-181,408.20-42,084.40

Finding the Fourth Proportional to 120,967.60, 181,408.20 and 42,084.40

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Solution

The fourth proportional to 120,967.60, 181,408.20 and 42,084.40 is: 63,111.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,967.60 : 181,408.20 = 42,084.40 : x
  2. Step 2: Convert to fraction form
    120,967.60/181,408.20 = 42,084.40/x
  3. Step 3: Cross multiply
    120,967.60x = 181,408.20 × 42,084.40
  4. Step 4: Simplify right side
    120,967.60x = 7,634,455,252.08
  5. Step 5: Solve for x
    x = 7,634,455,252.08/120,967.60
  6. Step 6: Final answer
    x = 63,111.57

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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.