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Finding the Fourth Proportional to 162,455.87, 224,188.35 and 90,835.89

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Solution

The fourth proportional to 162,455.87, 224,188.35 and 90,835.89 is: 125,353.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,455.87 : 224,188.35 = 90,835.89 : x
  2. Step 2: Convert to fraction form
    162,455.87/224,188.35 = 90,835.89/x
  3. Step 3: Cross multiply
    162,455.87x = 224,188.35 × 90,835.89
  4. Step 4: Simplify right side
    162,455.87x = 20,364,348,299.88
  5. Step 5: Solve for x
    x = 20,364,348,299.88/162,455.87
  6. Step 6: Final answer
    x = 125,353.11

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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.