Home / 135,810.40-187,416.50-75,380.88

Finding the Fourth Proportional to 135,810.40, 187,416.50 and 75,380.88

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Solution

The fourth proportional to 135,810.40, 187,416.50 and 75,380.88 is: 104,024.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,810.40 : 187,416.50 = 75,380.88 : x
  2. Step 2: Convert to fraction form
    135,810.40/187,416.50 = 75,380.88/x
  3. Step 3: Cross multiply
    135,810.40x = 187,416.50 × 75,380.88
  4. Step 4: Simplify right side
    135,810.40x = 14,127,620,696.52
  5. Step 5: Solve for x
    x = 14,127,620,696.52/135,810.40
  6. Step 6: Final answer
    x = 104,024.59

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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.