Home / 109,020.69-163,188.36-75,087.54

Finding the Fourth Proportional to 109,020.69, 163,188.36 and 75,087.54

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Solution

The fourth proportional to 109,020.69, 163,188.36 and 75,087.54 is: 112,395.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,020.69 : 163,188.36 = 75,087.54 : x
  2. Step 2: Convert to fraction form
    109,020.69/163,188.36 = 75,087.54/x
  3. Step 3: Cross multiply
    109,020.69x = 163,188.36 × 75,087.54
  4. Step 4: Simplify right side
    109,020.69x = 12,253,412,509.03
  5. Step 5: Solve for x
    x = 12,253,412,509.03/109,020.69
  6. Step 6: Final answer
    x = 112,395.29

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1.5x scale

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.