Home / 109,712.18-151,394.88-64,391.96

Finding the Fourth Proportional to 109,712.18, 151,394.88 and 64,391.96

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Solution

The fourth proportional to 109,712.18, 151,394.88 and 64,391.96 is: 88,856.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,712.18 : 151,394.88 = 64,391.96 : x
  2. Step 2: Convert to fraction form
    109,712.18/151,394.88 = 64,391.96/x
  3. Step 3: Cross multiply
    109,712.18x = 151,394.88 × 64,391.96
  4. Step 4: Simplify right side
    109,712.18x = 9,748,613,057.16
  5. Step 5: Solve for x
    x = 9,748,613,057.16/109,712.18
  6. Step 6: Final answer
    x = 88,856.25

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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.