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Finding the Fourth Proportional to 145,683.56, 218,452.12 and 84,913.41

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Solution

The fourth proportional to 145,683.56, 218,452.12 and 84,913.41 is: 127,327.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,683.56 : 218,452.12 = 84,913.41 : x
  2. Step 2: Convert to fraction form
    145,683.56/218,452.12 = 84,913.41/x
  3. Step 3: Cross multiply
    145,683.56x = 218,452.12 × 84,913.41
  4. Step 4: Simplify right side
    145,683.56x = 18,549,515,515.48
  5. Step 5: Solve for x
    x = 18,549,515,515.48/145,683.56
  6. Step 6: Final answer
    x = 127,327.44

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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.