Home / 99,395.78-148,985.23-48,829.61

Finding the Fourth Proportional to 99,395.78, 148,985.23 and 48,829.61

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Solution

The fourth proportional to 99,395.78, 148,985.23 and 48,829.61 is: 73,191.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,395.78 : 148,985.23 = 48,829.61 : x
  2. Step 2: Convert to fraction form
    99,395.78/148,985.23 = 48,829.61/x
  3. Step 3: Cross multiply
    99,395.78x = 148,985.23 × 48,829.61
  4. Step 4: Simplify right side
    99,395.78x = 7,274,889,687.59
  5. Step 5: Solve for x
    x = 7,274,889,687.59/99,395.78
  6. Step 6: Final answer
    x = 73,191.13

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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.