Home / 207,605.39-286,508.34-120,408.21

Finding the Fourth Proportional to 207,605.39, 286,508.34 and 120,408.21

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Solution

The fourth proportional to 207,605.39, 286,508.34 and 120,408.21 is: 166,170.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,605.39 : 286,508.34 = 120,408.21 : x
  2. Step 2: Convert to fraction form
    207,605.39/286,508.34 = 120,408.21/x
  3. Step 3: Cross multiply
    207,605.39x = 286,508.34 × 120,408.21
  4. Step 4: Simplify right side
    207,605.39x = 34,497,956,369.47
  5. Step 5: Solve for x
    x = 34,497,956,369.47/207,605.39
  6. Step 6: Final answer
    x = 166,170.82

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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.