Home / 105,161.08-145,122.62-67,435.48

Finding the Fourth Proportional to 105,161.08, 145,122.62 and 67,435.48

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Solution

The fourth proportional to 105,161.08, 145,122.62 and 67,435.48 is: 93,061.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,161.08 : 145,122.62 = 67,435.48 : x
  2. Step 2: Convert to fraction form
    105,161.08/145,122.62 = 67,435.48/x
  3. Step 3: Cross multiply
    105,161.08x = 145,122.62 × 67,435.48
  4. Step 4: Simplify right side
    105,161.08x = 9,786,413,538.56
  5. Step 5: Solve for x
    x = 9,786,413,538.56/105,161.08
  6. Step 6: Final answer
    x = 93,061.17

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.