Home / 135,890.31-187,534.87-75,461.18

Finding the Fourth Proportional to 135,890.31, 187,534.87 and 75,461.18

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Solution

The fourth proportional to 135,890.31, 187,534.87 and 75,461.18 is: 104,139.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,890.31 : 187,534.87 = 75,461.18 : x
  2. Step 2: Convert to fraction form
    135,890.31/187,534.87 = 75,461.18/x
  3. Step 3: Cross multiply
    135,890.31x = 187,534.87 × 75,461.18
  4. Step 4: Simplify right side
    135,890.31x = 14,151,602,672.88
  5. Step 5: Solve for x
    x = 14,151,602,672.88/135,890.31
  6. Step 6: Final answer
    x = 104,139.90

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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.