Home / 99,905.08-149,883.54-49,983.16

Finding the Fourth Proportional to 99,905.08, 149,883.54 and 49,983.16

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Solution

The fourth proportional to 99,905.08, 149,883.54 and 49,983.16 is: 74,987.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,905.08 : 149,883.54 = 49,983.16 : x
  2. Step 2: Convert to fraction form
    99,905.08/149,883.54 = 49,983.16/x
  3. Step 3: Cross multiply
    99,905.08x = 149,883.54 × 49,983.16
  4. Step 4: Simplify right side
    99,905.08x = 7,491,652,961.19
  5. Step 5: Solve for x
    x = 7,491,652,961.19/99,905.08
  6. Step 6: Final answer
    x = 74,987.71

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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.