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Finding the Fourth Proportional to 168,407.32, 232,396.32 and 100,389.26

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Solution

The fourth proportional to 168,407.32, 232,396.32 and 100,389.26 is: 138,533.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,407.32 : 232,396.32 = 100,389.26 : x
  2. Step 2: Convert to fraction form
    168,407.32/232,396.32 = 100,389.26/x
  3. Step 3: Cross multiply
    168,407.32x = 232,396.32 × 100,389.26
  4. Step 4: Simplify right side
    168,407.32x = 23,330,094,591.52
  5. Step 5: Solve for x
    x = 23,330,094,591.52/168,407.32
  6. Step 6: Final answer
    x = 138,533.73

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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.