Home / 144,840.60-217,358.10-85,613.40

Finding the Fourth Proportional to 144,840.60, 217,358.10 and 85,613.40

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Solution

The fourth proportional to 144,840.60, 217,358.10 and 85,613.40 is: 128,477.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,840.60 : 217,358.10 = 85,613.40 : x
  2. Step 2: Convert to fraction form
    144,840.60/217,358.10 = 85,613.40/x
  3. Step 3: Cross multiply
    144,840.60x = 217,358.10 × 85,613.40
  4. Step 4: Simplify right side
    144,840.60x = 18,608,765,958.54
  5. Step 5: Solve for x
    x = 18,608,765,958.54/144,840.60
  6. Step 6: Final answer
    x = 128,477.55

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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.