Home / 135,093.04-186,451.55-78,537.22

Finding the Fourth Proportional to 135,093.04, 186,451.55 and 78,537.22

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Solution

The fourth proportional to 135,093.04, 186,451.55 and 78,537.22 is: 108,394.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,093.04 : 186,451.55 = 78,537.22 : x
  2. Step 2: Convert to fraction form
    135,093.04/186,451.55 = 78,537.22/x
  3. Step 3: Cross multiply
    135,093.04x = 186,451.55 × 78,537.22
  4. Step 4: Simplify right side
    135,093.04x = 14,643,386,009.00
  5. Step 5: Solve for x
    x = 14,643,386,009.00/135,093.04
  6. Step 6: Final answer
    x = 108,394.82

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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.