Home / 135,741.71-187,346.05-75,331.76

Finding the Fourth Proportional to 135,741.71, 187,346.05 and 75,331.76

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Solution

The fourth proportional to 135,741.71, 187,346.05 and 75,331.76 is: 103,970.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,741.71 : 187,346.05 = 75,331.76 : x
  2. Step 2: Convert to fraction form
    135,741.71/187,346.05 = 75,331.76/x
  3. Step 3: Cross multiply
    135,741.71x = 187,346.05 × 75,331.76
  4. Step 4: Simplify right side
    135,741.71x = 14,113,107,955.58
  5. Step 5: Solve for x
    x = 14,113,107,955.58/135,741.71
  6. Step 6: Final answer
    x = 103,970.32

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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.