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Finding the Fourth Proportional to 109,818, 151,498.08 and 64,481.40

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Solution

The fourth proportional to 109,818, 151,498.08 and 64,481.40 is: 88,954.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,818 : 151,498.08 = 64,481.40 : x
  2. Step 2: Convert to fraction form
    109,818/151,498.08 = 64,481.40/x
  3. Step 3: Cross multiply
    109,818x = 151,498.08 × 64,481.40
  4. Step 4: Simplify right side
    109,818x = 9,768,808,295.71
  5. Step 5: Solve for x
    x = 9,768,808,295.71/109,818
  6. Step 6: Final answer
    x = 88,954.53

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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.