Home / 126,727.96-174,890.10-70,139.32

Finding the Fourth Proportional to 126,727.96, 174,890.10 and 70,139.32

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Solution

The fourth proportional to 126,727.96, 174,890.10 and 70,139.32 is: 96,795.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,727.96 : 174,890.10 = 70,139.32 : x
  2. Step 2: Convert to fraction form
    126,727.96/174,890.10 = 70,139.32/x
  3. Step 3: Cross multiply
    126,727.96x = 174,890.10 × 70,139.32
  4. Step 4: Simplify right side
    126,727.96x = 12,266,672,688.73
  5. Step 5: Solve for x
    x = 12,266,672,688.73/126,727.96
  6. Step 6: Final answer
    x = 96,795.31

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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.