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Finding the Fourth Proportional to 141,415.80, 212,109.12 and 47,919.12

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Solution

The fourth proportional to 141,415.80, 212,109.12 and 47,919.12 is: 71,873.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,415.80 : 212,109.12 = 47,919.12 : x
  2. Step 2: Convert to fraction form
    141,415.80/212,109.12 = 47,919.12/x
  3. Step 3: Cross multiply
    141,415.80x = 212,109.12 × 47,919.12
  4. Step 4: Simplify right side
    141,415.80x = 10,164,082,374.37
  5. Step 5: Solve for x
    x = 10,164,082,374.37/141,415.80
  6. Step 6: Final answer
    x = 71,873.74

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1.5x scale

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.