Home / 99,385.01-149,018.23-67,403.48

Finding the Fourth Proportional to 99,385.01, 149,018.23 and 67,403.48

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Solution

The fourth proportional to 99,385.01, 149,018.23 and 67,403.48 is: 101,065.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,385.01 : 149,018.23 = 67,403.48 : x
  2. Step 2: Convert to fraction form
    99,385.01/149,018.23 = 67,403.48/x
  3. Step 3: Cross multiply
    99,385.01x = 149,018.23 × 67,403.48
  4. Step 4: Simplify right side
    99,385.01x = 10,044,346,371.84
  5. Step 5: Solve for x
    x = 10,044,346,371.84/99,385.01
  6. Step 6: Final answer
    x = 101,065.01

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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.