Home / 109,912.08-151,679.34-67,455.12

Finding the Fourth Proportional to 109,912.08, 151,679.34 and 67,455.12

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Solution

The fourth proportional to 109,912.08, 151,679.34 and 67,455.12 is: 93,088.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,912.08 : 151,679.34 = 67,455.12 : x
  2. Step 2: Convert to fraction form
    109,912.08/151,679.34 = 67,455.12/x
  3. Step 3: Cross multiply
    109,912.08x = 151,679.34 × 67,455.12
  4. Step 4: Simplify right side
    109,912.08x = 10,231,548,081.22
  5. Step 5: Solve for x
    x = 10,231,548,081.22/109,912.08
  6. Step 6: Final answer
    x = 93,088.48

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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.