Home / 162,406.06-224,121.26-90,789.10

Finding the Fourth Proportional to 162,406.06, 224,121.26 and 90,789.10

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Solution

The fourth proportional to 162,406.06, 224,121.26 and 90,789.10 is: 125,289.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,406.06 : 224,121.26 = 90,789.10 : x
  2. Step 2: Convert to fraction form
    162,406.06/224,121.26 = 90,789.10/x
  3. Step 3: Cross multiply
    162,406.06x = 224,121.26 × 90,789.10
  4. Step 4: Simplify right side
    162,406.06x = 20,347,765,911.71
  5. Step 5: Solve for x
    x = 20,347,765,911.71/162,406.06
  6. Step 6: Final answer
    x = 125,289.45

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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.