Home / 168,408.32-232,397.70-100,390.26

Finding the Fourth Proportional to 168,408.32, 232,397.70 and 100,390.26

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Solution

The fourth proportional to 168,408.32, 232,397.70 and 100,390.26 is: 138,535.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,408.32 : 232,397.70 = 100,390.26 : x
  2. Step 2: Convert to fraction form
    168,408.32/232,397.70 = 100,390.26/x
  3. Step 3: Cross multiply
    168,408.32x = 232,397.70 × 100,390.26
  4. Step 4: Simplify right side
    168,408.32x = 23,330,465,526.40
  5. Step 5: Solve for x
    x = 23,330,465,526.40/168,408.32
  6. Step 6: Final answer
    x = 138,535.11

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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.