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Finding the Fourth Proportional to 141,468.80, 212,200.16 and 66,547.44

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Solution

The fourth proportional to 141,468.80, 212,200.16 and 66,547.44 is: 99,819.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,468.80 : 212,200.16 = 66,547.44 : x
  2. Step 2: Convert to fraction form
    141,468.80/212,200.16 = 66,547.44/x
  3. Step 3: Cross multiply
    141,468.80x = 212,200.16 × 66,547.44
  4. Step 4: Simplify right side
    141,468.80x = 14,121,377,415.59
  5. Step 5: Solve for x
    x = 14,121,377,415.59/141,468.80
  6. Step 6: Final answer
    x = 99,819.73

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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.