Home / 162,921.87-224,820.77-90,324.09

Finding the Fourth Proportional to 162,921.87, 224,820.77 and 90,324.09

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Solution

The fourth proportional to 162,921.87, 224,820.77 and 90,324.09 is: 124,640.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,921.87 : 224,820.77 = 90,324.09 : x
  2. Step 2: Convert to fraction form
    162,921.87/224,820.77 = 90,324.09/x
  3. Step 3: Cross multiply
    162,921.87x = 224,820.77 × 90,324.09
  4. Step 4: Simplify right side
    162,921.87x = 20,306,729,887.63
  5. Step 5: Solve for x
    x = 20,306,729,887.63/162,921.87
  6. Step 6: Final answer
    x = 124,640.91

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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.