Home / 162,403.16-224,121.34-90,786.20

Finding the Fourth Proportional to 162,403.16, 224,121.34 and 90,786.20

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Solution

The fourth proportional to 162,403.16, 224,121.34 and 90,786.20 is: 125,287.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,403.16 : 224,121.34 = 90,786.20 : x
  2. Step 2: Convert to fraction form
    162,403.16/224,121.34 = 90,786.20/x
  3. Step 3: Cross multiply
    162,403.16x = 224,121.34 × 90,786.20
  4. Step 4: Simplify right side
    162,403.16x = 20,347,124,797.51
  5. Step 5: Solve for x
    x = 20,347,124,797.51/162,403.16
  6. Step 6: Final answer
    x = 125,287.74

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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.