Home / 123,869.76-170,950.80-70,164.36

Finding the Fourth Proportional to 123,869.76, 170,950.80 and 70,164.36

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Solution

The fourth proportional to 123,869.76, 170,950.80 and 70,164.36 is: 96,832.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,869.76 : 170,950.80 = 70,164.36 : x
  2. Step 2: Convert to fraction form
    123,869.76/170,950.80 = 70,164.36/x
  3. Step 3: Cross multiply
    123,869.76x = 170,950.80 × 70,164.36
  4. Step 4: Simplify right side
    123,869.76x = 11,994,653,473.49
  5. Step 5: Solve for x
    x = 11,994,653,473.49/123,869.76
  6. Step 6: Final answer
    x = 96,832.78

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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.