Home / 99,243.96-148,843.50-29,128.74

Finding the Fourth Proportional to 99,243.96, 148,843.50 and 29,128.74

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Solution

The fourth proportional to 99,243.96, 148,843.50 and 29,128.74 is: 43,686.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,243.96 : 148,843.50 = 29,128.74 : x
  2. Step 2: Convert to fraction form
    99,243.96/148,843.50 = 29,128.74/x
  3. Step 3: Cross multiply
    99,243.96x = 148,843.50 × 29,128.74
  4. Step 4: Simplify right side
    99,243.96x = 4,335,623,612.19
  5. Step 5: Solve for x
    x = 4,335,623,612.19/99,243.96
  6. Step 6: Final answer
    x = 43,686.52

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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.