Home / 126,725.48-174,861.60-72,999.98

Finding the Fourth Proportional to 126,725.48, 174,861.60 and 72,999.98

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Solution

The fourth proportional to 126,725.48, 174,861.60 and 72,999.98 is: 100,728.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,725.48 : 174,861.60 = 72,999.98 : x
  2. Step 2: Convert to fraction form
    126,725.48/174,861.60 = 72,999.98/x
  3. Step 3: Cross multiply
    126,725.48x = 174,861.60 × 72,999.98
  4. Step 4: Simplify right side
    126,725.48x = 12,764,892,428.46
  5. Step 5: Solve for x
    x = 12,764,892,428.46/126,725.48
  6. Step 6: Final answer
    x = 100,728.70

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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.