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Finding the Fourth Proportional to 162,378.40, 224,103.30 and 90,773.32

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Solution

The fourth proportional to 162,378.40, 224,103.30 and 90,773.32 is: 125,278.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,378.40 : 224,103.30 = 90,773.32 : x
  2. Step 2: Convert to fraction form
    162,378.40/224,103.30 = 90,773.32/x
  3. Step 3: Cross multiply
    162,378.40x = 224,103.30 × 90,773.32
  4. Step 4: Simplify right side
    162,378.40x = 20,342,600,563.96
  5. Step 5: Solve for x
    x = 20,342,600,563.96/162,378.40
  6. Step 6: Final answer
    x = 125,278.98

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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.