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Finding the Fourth Proportional to 162,518.64, 224,276.32 and 90,894.09

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Solution

The fourth proportional to 162,518.64, 224,276.32 and 90,894.09 is: 125,434.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,518.64 : 224,276.32 = 90,894.09 : x
  2. Step 2: Convert to fraction form
    162,518.64/224,276.32 = 90,894.09/x
  3. Step 3: Cross multiply
    162,518.64x = 224,276.32 × 90,894.09
  4. Step 4: Simplify right side
    162,518.64x = 20,385,392,014.95
  5. Step 5: Solve for x
    x = 20,385,392,014.95/162,518.64
  6. Step 6: Final answer
    x = 125,434.18

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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.