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Finding the Fourth Proportional to 162,028.70, 243,043.05 and 83,150.90

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Solution

The fourth proportional to 162,028.70, 243,043.05 and 83,150.90 is: 124,726.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,028.70 : 243,043.05 = 83,150.90 : x
  2. Step 2: Convert to fraction form
    162,028.70/243,043.05 = 83,150.90/x
  3. Step 3: Cross multiply
    162,028.70x = 243,043.05 × 83,150.90
  4. Step 4: Simplify right side
    162,028.70x = 20,209,248,346.25
  5. Step 5: Solve for x
    x = 20,209,248,346.25/162,028.70
  6. Step 6: Final answer
    x = 124,726.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.