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Finding the Fourth Proportional to 162,173.61, 223,772.76 and 90,553.68

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Solution

The fourth proportional to 162,173.61, 223,772.76 and 90,553.68 is: 124,949.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,173.61 : 223,772.76 = 90,553.68 : x
  2. Step 2: Convert to fraction form
    162,173.61/223,772.76 = 90,553.68/x
  3. Step 3: Cross multiply
    162,173.61x = 223,772.76 × 90,553.68
  4. Step 4: Simplify right side
    162,173.61x = 20,263,446,901.76
  5. Step 5: Solve for x
    x = 20,263,446,901.76/162,173.61
  6. Step 6: Final answer
    x = 124,949.10

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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.