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Finding the Fourth Proportional to 118,465.66, 163,500.42 and 72,552.70

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Solution

The fourth proportional to 118,465.66, 163,500.42 and 72,552.70 is: 100,133.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,465.66 : 163,500.42 = 72,552.70 : x
  2. Step 2: Convert to fraction form
    118,465.66/163,500.42 = 72,552.70/x
  3. Step 3: Cross multiply
    118,465.66x = 163,500.42 × 72,552.70
  4. Step 4: Simplify right side
    118,465.66x = 11,862,396,922.13
  5. Step 5: Solve for x
    x = 11,862,396,922.13/118,465.66
  6. Step 6: Final answer
    x = 100,133.63

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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.