Home / 109,613.15-151,291.42-64,305.68

Finding the Fourth Proportional to 109,613.15, 151,291.42 and 64,305.68

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Solution

The fourth proportional to 109,613.15, 151,291.42 and 64,305.68 is: 88,756.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,613.15 : 151,291.42 = 64,305.68 : x
  2. Step 2: Convert to fraction form
    109,613.15/151,291.42 = 64,305.68/x
  3. Step 3: Cross multiply
    109,613.15x = 151,291.42 × 64,305.68
  4. Step 4: Simplify right side
    109,613.15x = 9,728,897,858.73
  5. Step 5: Solve for x
    x = 9,728,897,858.73/109,613.15
  6. Step 6: Final answer
    x = 88,756.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.