Home / 103,625.10-142,997.12-61,168.14

Finding the Fourth Proportional to 103,625.10, 142,997.12 and 61,168.14

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Solution

The fourth proportional to 103,625.10, 142,997.12 and 61,168.14 is: 84,408.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,625.10 : 142,997.12 = 61,168.14 : x
  2. Step 2: Convert to fraction form
    103,625.10/142,997.12 = 61,168.14/x
  3. Step 3: Cross multiply
    103,625.10x = 142,997.12 × 61,168.14
  4. Step 4: Simplify right side
    103,625.10x = 8,746,867,855.76
  5. Step 5: Solve for x
    x = 8,746,867,855.76/103,625.10
  6. Step 6: Final answer
    x = 84,408.78

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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.