Home / 118,640.12-163,723.38-64,925.14

Finding the Fourth Proportional to 118,640.12, 163,723.38 and 64,925.14

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Solution

The fourth proportional to 118,640.12, 163,723.38 and 64,925.14 is: 89,596.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,640.12 : 163,723.38 = 64,925.14 : x
  2. Step 2: Convert to fraction form
    118,640.12/163,723.38 = 64,925.14/x
  3. Step 3: Cross multiply
    118,640.12x = 163,723.38 × 64,925.14
  4. Step 4: Simplify right side
    118,640.12x = 10,629,763,367.77
  5. Step 5: Solve for x
    x = 10,629,763,367.77/118,640.12
  6. Step 6: Final answer
    x = 89,596.70

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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.