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Finding the Fourth Proportional to 109,657.09, 151,461.73 and 79,394.48

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Solution

The fourth proportional to 109,657.09, 151,461.73 and 79,394.48 is: 109,662.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,657.09 : 151,461.73 = 79,394.48 : x
  2. Step 2: Convert to fraction form
    109,657.09/151,461.73 = 79,394.48/x
  3. Step 3: Cross multiply
    109,657.09x = 151,461.73 × 79,394.48
  4. Step 4: Simplify right side
    109,657.09x = 12,025,225,293.25
  5. Step 5: Solve for x
    x = 12,025,225,293.25/109,657.09
  6. Step 6: Final answer
    x = 109,662.09

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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.