Home / 135,530.80-187,030.02-75,100.12

Finding the Fourth Proportional to 135,530.80, 187,030.02 and 75,100.12

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Solution

The fourth proportional to 135,530.80, 187,030.02 and 75,100.12 is: 103,636.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,530.80 : 187,030.02 = 75,100.12 : x
  2. Step 2: Convert to fraction form
    135,530.80/187,030.02 = 75,100.12/x
  3. Step 3: Cross multiply
    135,530.80x = 187,030.02 × 75,100.12
  4. Step 4: Simplify right side
    135,530.80x = 14,045,976,945.60
  5. Step 5: Solve for x
    x = 14,045,976,945.60/135,530.80
  6. Step 6: Final answer
    x = 103,636.79

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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.