Home / 168,381.10-232,396.02-100,402.45

Finding the Fourth Proportional to 168,381.10, 232,396.02 and 100,402.45

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Solution

The fourth proportional to 168,381.10, 232,396.02 and 100,402.45 is: 138,573.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,381.10 : 232,396.02 = 100,402.45 : x
  2. Step 2: Convert to fraction form
    168,381.10/232,396.02 = 100,402.45/x
  3. Step 3: Cross multiply
    168,381.10x = 232,396.02 × 100,402.45
  4. Step 4: Simplify right side
    168,381.10x = 23,333,129,778.25
  5. Step 5: Solve for x
    x = 23,333,129,778.25/168,381.10
  6. Step 6: Final answer
    x = 138,573.33

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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.