Home / 105,727.95-145,911.32-69,855.03

Finding the Fourth Proportional to 105,727.95, 145,911.32 and 69,855.03

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Solution

The fourth proportional to 105,727.95, 145,911.32 and 69,855.03 is: 96,404.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,727.95 : 145,911.32 = 69,855.03 : x
  2. Step 2: Convert to fraction form
    105,727.95/145,911.32 = 69,855.03/x
  3. Step 3: Cross multiply
    105,727.95x = 145,911.32 × 69,855.03
  4. Step 4: Simplify right side
    105,727.95x = 10,192,639,286.66
  5. Step 5: Solve for x
    x = 10,192,639,286.66/105,727.95
  6. Step 6: Final answer
    x = 96,404.40

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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.