Home / 163,439.20-225,544.74-91,817.69

Finding the Fourth Proportional to 163,439.20, 225,544.74 and 91,817.69

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Solution

The fourth proportional to 163,439.20, 225,544.74 and 91,817.69 is: 126,707.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,439.20 : 225,544.74 = 91,817.69 : x
  2. Step 2: Convert to fraction form
    163,439.20/225,544.74 = 91,817.69/x
  3. Step 3: Cross multiply
    163,439.20x = 225,544.74 × 91,817.69
  4. Step 4: Simplify right side
    163,439.20x = 20,708,997,018.45
  5. Step 5: Solve for x
    x = 20,708,997,018.45/163,439.20
  6. Step 6: Final answer
    x = 126,707.65

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1.5x scale

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.