Home / 135,134-186,475.98-77,764.04

Finding the Fourth Proportional to 135,134, 186,475.98 and 77,764.04

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Solution

The fourth proportional to 135,134, 186,475.98 and 77,764.04 is: 107,309.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,134 : 186,475.98 = 77,764.04 : x
  2. Step 2: Convert to fraction form
    135,134/186,475.98 = 77,764.04/x
  3. Step 3: Cross multiply
    135,134x = 186,475.98 × 77,764.04
  4. Step 4: Simplify right side
    135,134x = 14,501,125,567.76
  5. Step 5: Solve for x
    x = 14,501,125,567.76/135,134
  6. Step 6: Final answer
    x = 107,309.23

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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.