Home / 123,115.96-184,680.78-38,878.12

Finding the Fourth Proportional to 123,115.96, 184,680.78 and 38,878.12

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Solution

The fourth proportional to 123,115.96, 184,680.78 and 38,878.12 is: 58,319.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,115.96 : 184,680.78 = 38,878.12 : x
  2. Step 2: Convert to fraction form
    123,115.96/184,680.78 = 38,878.12/x
  3. Step 3: Cross multiply
    123,115.96x = 184,680.78 × 38,878.12
  4. Step 4: Simplify right side
    123,115.96x = 7,180,041,526.53
  5. Step 5: Solve for x
    x = 7,180,041,526.53/123,115.96
  6. Step 6: Final answer
    x = 58,319.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.