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Finding the Fourth Proportional to 163,309.60, 225,350.48 and 91,697.52

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Solution

The fourth proportional to 163,309.60, 225,350.48 and 91,697.52 is: 126,533.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,309.60 : 225,350.48 = 91,697.52 : x
  2. Step 2: Convert to fraction form
    163,309.60/225,350.48 = 91,697.52/x
  3. Step 3: Cross multiply
    163,309.60x = 225,350.48 × 91,697.52
  4. Step 4: Simplify right side
    163,309.60x = 20,664,080,146.81
  5. Step 5: Solve for x
    x = 20,664,080,146.81/163,309.60
  6. Step 6: Final answer
    x = 126,533.16

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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.