Home / 120,073.19-165,701.51-65,626.45

Finding the Fourth Proportional to 120,073.19, 165,701.51 and 65,626.45

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Solution

The fourth proportional to 120,073.19, 165,701.51 and 65,626.45 is: 90,564.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,073.19 : 165,701.51 = 65,626.45 : x
  2. Step 2: Convert to fraction form
    120,073.19/165,701.51 = 65,626.45/x
  3. Step 3: Cross multiply
    120,073.19x = 165,701.51 × 65,626.45
  4. Step 4: Simplify right side
    120,073.19x = 10,874,401,860.94
  5. Step 5: Solve for x
    x = 10,874,401,860.94/120,073.19
  6. Step 6: Final answer
    x = 90,564.78

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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.