Home / 168,395.82-232,416.18-100,417.29

Finding the Fourth Proportional to 168,395.82, 232,416.18 and 100,417.29

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Solution

The fourth proportional to 168,395.82, 232,416.18 and 100,417.29 is: 138,593.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,395.82 : 232,416.18 = 100,417.29 : x
  2. Step 2: Convert to fraction form
    168,395.82/232,416.18 = 100,417.29/x
  3. Step 3: Cross multiply
    168,395.82x = 232,416.18 × 100,417.29
  4. Step 4: Simplify right side
    168,395.82x = 23,338,602,947.75
  5. Step 5: Solve for x
    x = 23,338,602,947.75/168,395.82
  6. Step 6: Final answer
    x = 138,593.72

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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.