Home / 99,900.04-149,923.80-47,309.44

Finding the Fourth Proportional to 99,900.04, 149,923.80 and 47,309.44

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Solution

The fourth proportional to 99,900.04, 149,923.80 and 47,309.44 is: 70,999.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,900.04 : 149,923.80 = 47,309.44 : x
  2. Step 2: Convert to fraction form
    99,900.04/149,923.80 = 47,309.44/x
  3. Step 3: Cross multiply
    99,900.04x = 149,923.80 × 47,309.44
  4. Step 4: Simplify right side
    99,900.04x = 7,092,811,020.67
  5. Step 5: Solve for x
    x = 7,092,811,020.67/99,900.04
  6. Step 6: Final answer
    x = 70,999.08

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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.