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Finding the Fourth Proportional to 126,889.52, 175,099.92 and 70,296.80

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Solution

The fourth proportional to 126,889.52, 175,099.92 and 70,296.80 is: 97,005.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,889.52 : 175,099.92 = 70,296.80 : x
  2. Step 2: Convert to fraction form
    126,889.52/175,099.92 = 70,296.80/x
  3. Step 3: Cross multiply
    126,889.52x = 175,099.92 × 70,296.80
  4. Step 4: Simplify right side
    126,889.52x = 12,308,964,056.26
  5. Step 5: Solve for x
    x = 12,308,964,056.26/126,889.52
  6. Step 6: Final answer
    x = 97,005.36

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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.