Home / 135,298.19-186,731.31-77,926.49

Finding the Fourth Proportional to 135,298.19, 186,731.31 and 77,926.49

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Solution

The fourth proportional to 135,298.19, 186,731.31 and 77,926.49 is: 107,549.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,298.19 : 186,731.31 = 77,926.49 : x
  2. Step 2: Convert to fraction form
    135,298.19/186,731.31 = 77,926.49/x
  3. Step 3: Cross multiply
    135,298.19x = 186,731.31 × 77,926.49
  4. Step 4: Simplify right side
    135,298.19x = 14,551,314,627.75
  5. Step 5: Solve for x
    x = 14,551,314,627.75/135,298.19
  6. Step 6: Final answer
    x = 107,549.96

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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.