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Finding the Fourth Proportional to 109,954.58, 151,659.08 and 100,909.16

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Solution

The fourth proportional to 109,954.58, 151,659.08 and 100,909.16 is: 139,182.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,954.58 : 151,659.08 = 100,909.16 : x
  2. Step 2: Convert to fraction form
    109,954.58/151,659.08 = 100,909.16/x
  3. Step 3: Cross multiply
    109,954.58x = 151,659.08 × 100,909.16
  4. Step 4: Simplify right side
    109,954.58x = 15,303,790,053.46
  5. Step 5: Solve for x
    x = 15,303,790,053.46/109,954.58
  6. Step 6: Final answer
    x = 139,182.83

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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.