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Finding the Fourth Proportional to 162,357.78, 224,049.60 and 90,738.40

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Solution

The fourth proportional to 162,357.78, 224,049.60 and 90,738.40 is: 125,216.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,357.78 : 224,049.60 = 90,738.40 : x
  2. Step 2: Convert to fraction form
    162,357.78/224,049.60 = 90,738.40/x
  3. Step 3: Cross multiply
    162,357.78x = 224,049.60 × 90,738.40
  4. Step 4: Simplify right side
    162,357.78x = 20,329,902,224.64
  5. Step 5: Solve for x
    x = 20,329,902,224.64/162,357.78
  6. Step 6: Final answer
    x = 125,216.68

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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.