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Finding the Fourth Proportional to 145,101.44, 217,627.52 and 66,197.12

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Solution

The fourth proportional to 145,101.44, 217,627.52 and 66,197.12 is: 99,284.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,101.44 : 217,627.52 = 66,197.12 : x
  2. Step 2: Convert to fraction form
    145,101.44/217,627.52 = 66,197.12/x
  3. Step 3: Cross multiply
    145,101.44x = 217,627.52 × 66,197.12
  4. Step 4: Simplify right side
    145,101.44x = 14,406,315,056.74
  5. Step 5: Solve for x
    x = 14,406,315,056.74/145,101.44
  6. Step 6: Final answer
    x = 99,284.44

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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.