Home / 126,158.56-174,090.86-72,405.74

Finding the Fourth Proportional to 126,158.56, 174,090.86 and 72,405.74

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Solution

The fourth proportional to 126,158.56, 174,090.86 and 72,405.74 is: 99,915.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,158.56 : 174,090.86 = 72,405.74 : x
  2. Step 2: Convert to fraction form
    126,158.56/174,090.86 = 72,405.74/x
  3. Step 3: Cross multiply
    126,158.56x = 174,090.86 × 72,405.74
  4. Step 4: Simplify right side
    126,158.56x = 12,605,177,545.54
  5. Step 5: Solve for x
    x = 12,605,177,545.54/126,158.56
  6. Step 6: Final answer
    x = 99,915.36

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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.