Home / 99,904.24-149,727.18-74,746.90

Finding the Fourth Proportional to 99,904.24, 149,727.18 and 74,746.90

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Solution

The fourth proportional to 99,904.24, 149,727.18 and 74,746.90 is: 112,023.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,904.24 : 149,727.18 = 74,746.90 : x
  2. Step 2: Convert to fraction form
    99,904.24/149,727.18 = 74,746.90/x
  3. Step 3: Cross multiply
    99,904.24x = 149,727.18 × 74,746.90
  4. Step 4: Simplify right side
    99,904.24x = 11,191,643,018.20
  5. Step 5: Solve for x
    x = 11,191,643,018.20/99,904.24
  6. Step 6: Final answer
    x = 112,023.71

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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.