Home / 168,404.32-232,392.18-100,386.25

Finding the Fourth Proportional to 168,404.32, 232,392.18 and 100,386.25

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Solution

The fourth proportional to 168,404.32, 232,392.18 and 100,386.25 is: 138,529.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,404.32 : 232,392.18 = 100,386.25 : x
  2. Step 2: Convert to fraction form
    168,404.32/232,392.18 = 100,386.25/x
  3. Step 3: Cross multiply
    168,404.32x = 232,392.18 × 100,386.25
  4. Step 4: Simplify right side
    168,404.32x = 23,328,979,479.53
  5. Step 5: Solve for x
    x = 23,328,979,479.53/168,404.32
  6. Step 6: Final answer
    x = 138,529.58

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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.