Home / 126,731.52-174,888.72-70,141.68

Finding the Fourth Proportional to 126,731.52, 174,888.72 and 70,141.68

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Solution

The fourth proportional to 126,731.52, 174,888.72 and 70,141.68 is: 96,795.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,731.52 : 174,888.72 = 70,141.68 : x
  2. Step 2: Convert to fraction form
    126,731.52/174,888.72 = 70,141.68/x
  3. Step 3: Cross multiply
    126,731.52x = 174,888.72 × 70,141.68
  4. Step 4: Simplify right side
    126,731.52x = 12,266,988,633.85
  5. Step 5: Solve for x
    x = 12,266,988,633.85/126,731.52
  6. Step 6: Final answer
    x = 96,795.09

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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.