Home / 135,541.80-187,048.11-75,113.43

Finding the Fourth Proportional to 135,541.80, 187,048.11 and 75,113.43

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Solution

The fourth proportional to 135,541.80, 187,048.11 and 75,113.43 is: 103,656.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,541.80 : 187,048.11 = 75,113.43 : x
  2. Step 2: Convert to fraction form
    135,541.80/187,048.11 = 75,113.43/x
  3. Step 3: Cross multiply
    135,541.80x = 187,048.11 × 75,113.43
  4. Step 4: Simplify right side
    135,541.80x = 14,049,825,117.12
  5. Step 5: Solve for x
    x = 14,049,825,117.12/135,541.80
  6. Step 6: Final answer
    x = 103,656.77

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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.