Home / 127,789.80-176,357.94-70,429.10

Finding the Fourth Proportional to 127,789.80, 176,357.94 and 70,429.10

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Solution

The fourth proportional to 127,789.80, 176,357.94 and 70,429.10 is: 97,196.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,789.80 : 176,357.94 = 70,429.10 : x
  2. Step 2: Convert to fraction form
    127,789.80/176,357.94 = 70,429.10/x
  3. Step 3: Cross multiply
    127,789.80x = 176,357.94 × 70,429.10
  4. Step 4: Simplify right side
    127,789.80x = 12,420,730,992.05
  5. Step 5: Solve for x
    x = 12,420,730,992.05/127,789.80
  6. Step 6: Final answer
    x = 97,196.58

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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.