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Finding the Fourth Proportional to 117,065.50, 161,550.39 and 63,350.51

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Solution

The fourth proportional to 117,065.50, 161,550.39 and 63,350.51 is: 87,423.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,065.50 : 161,550.39 = 63,350.51 : x
  2. Step 2: Convert to fraction form
    117,065.50/161,550.39 = 63,350.51/x
  3. Step 3: Cross multiply
    117,065.50x = 161,550.39 × 63,350.51
  4. Step 4: Simplify right side
    117,065.50x = 10,234,299,438.82
  5. Step 5: Solve for x
    x = 10,234,299,438.82/117,065.50
  6. Step 6: Final answer
    x = 87,423.70

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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.