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Finding the Fourth Proportional to 112,652.56, 155,495.12 and 64,937.76

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Solution

The fourth proportional to 112,652.56, 155,495.12 and 64,937.76 is: 89,634.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,652.56 : 155,495.12 = 64,937.76 : x
  2. Step 2: Convert to fraction form
    112,652.56/155,495.12 = 64,937.76/x
  3. Step 3: Cross multiply
    112,652.56x = 155,495.12 × 64,937.76
  4. Step 4: Simplify right side
    112,652.56x = 10,097,504,783.73
  5. Step 5: Solve for x
    x = 10,097,504,783.73/112,652.56
  6. Step 6: Final answer
    x = 89,634.05

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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.