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Finding the Fourth Proportional to 109,893.60, 151,610.24 and 71,698.08

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Solution

The fourth proportional to 109,893.60, 151,610.24 and 71,698.08 is: 98,915.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,893.60 : 151,610.24 = 71,698.08 : x
  2. Step 2: Convert to fraction form
    109,893.60/151,610.24 = 71,698.08/x
  3. Step 3: Cross multiply
    109,893.60x = 151,610.24 × 71,698.08
  4. Step 4: Simplify right side
    109,893.60x = 10,870,163,116.34
  5. Step 5: Solve for x
    x = 10,870,163,116.34/109,893.60
  6. Step 6: Final answer
    x = 98,915.34

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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.