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Finding the Fourth Proportional to 117,903.52, 162,664.66 and 79,150.79

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Solution

The fourth proportional to 117,903.52, 162,664.66 and 79,150.79 is: 109,199.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,903.52 : 162,664.66 = 79,150.79 : x
  2. Step 2: Convert to fraction form
    117,903.52/162,664.66 = 79,150.79/x
  3. Step 3: Cross multiply
    117,903.52x = 162,664.66 × 79,150.79
  4. Step 4: Simplify right side
    117,903.52x = 12,875,035,135.00
  5. Step 5: Solve for x
    x = 12,875,035,135.00/117,903.52
  6. Step 6: Final answer
    x = 109,199.76

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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.