Home / 99,021.06-148,529.12-28,900.98

Finding the Fourth Proportional to 99,021.06, 148,529.12 and 28,900.98

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Solution

The fourth proportional to 99,021.06, 148,529.12 and 28,900.98 is: 43,350.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,021.06 : 148,529.12 = 28,900.98 : x
  2. Step 2: Convert to fraction form
    99,021.06/148,529.12 = 28,900.98/x
  3. Step 3: Cross multiply
    99,021.06x = 148,529.12 × 28,900.98
  4. Step 4: Simplify right side
    99,021.06x = 4,292,637,126.54
  5. Step 5: Solve for x
    x = 4,292,637,126.54/99,021.06
  6. Step 6: Final answer
    x = 43,350.75

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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.