Home / 135,541.55-187,047.77-75,113.19

Finding the Fourth Proportional to 135,541.55, 187,047.77 and 75,113.19

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Solution

The fourth proportional to 135,541.55, 187,047.77 and 75,113.19 is: 103,656.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,541.55 : 187,047.77 = 75,113.19 : x
  2. Step 2: Convert to fraction form
    135,541.55/187,047.77 = 75,113.19/x
  3. Step 3: Cross multiply
    135,541.55x = 187,047.77 × 75,113.19
  4. Step 4: Simplify right side
    135,541.55x = 14,049,754,311.52
  5. Step 5: Solve for x
    x = 14,049,754,311.52/135,541.55
  6. Step 6: Final answer
    x = 103,656.44

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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.