Home / 135,746.58-187,357.54-78,395.24

Finding the Fourth Proportional to 135,746.58, 187,357.54 and 78,395.24

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Solution

The fourth proportional to 135,746.58, 187,357.54 and 78,395.24 is: 108,201.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,746.58 : 187,357.54 = 78,395.24 : x
  2. Step 2: Convert to fraction form
    135,746.58/187,357.54 = 78,395.24/x
  3. Step 3: Cross multiply
    135,746.58x = 187,357.54 × 78,395.24
  4. Step 4: Simplify right side
    135,746.58x = 14,687,938,382.52
  5. Step 5: Solve for x
    x = 14,687,938,382.52/135,746.58
  6. Step 6: Final answer
    x = 108,201.17

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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.