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Finding the Fourth Proportional to 156,325.60, 215,728.41 and 88,364.58

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Solution

The fourth proportional to 156,325.60, 215,728.41 and 88,364.58 is: 121,942.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,325.60 : 215,728.41 = 88,364.58 : x
  2. Step 2: Convert to fraction form
    156,325.60/215,728.41 = 88,364.58/x
  3. Step 3: Cross multiply
    156,325.60x = 215,728.41 × 88,364.58
  4. Step 4: Simplify right side
    156,325.60x = 19,062,750,343.72
  5. Step 5: Solve for x
    x = 19,062,750,343.72/156,325.60
  6. Step 6: Final answer
    x = 121,942.60

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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.