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Finding the Fourth Proportional to 145,125.60, 217,515.60 and 60,885.60

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Solution

The fourth proportional to 145,125.60, 217,515.60 and 60,885.60 is: 91,255.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,125.60 : 217,515.60 = 60,885.60 : x
  2. Step 2: Convert to fraction form
    145,125.60/217,515.60 = 60,885.60/x
  3. Step 3: Cross multiply
    145,125.60x = 217,515.60 × 60,885.60
  4. Step 4: Simplify right side
    145,125.60x = 13,243,567,815.36
  5. Step 5: Solve for x
    x = 13,243,567,815.36/145,125.60
  6. Step 6: Final answer
    x = 91,255.90

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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.