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Finding the Fourth Proportional to 135,710.73, 187,303.26 and 75,300.84

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Solution

The fourth proportional to 135,710.73, 187,303.26 and 75,300.84 is: 103,927.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,710.73 : 187,303.26 = 75,300.84 : x
  2. Step 2: Convert to fraction form
    135,710.73/187,303.26 = 75,300.84/x
  3. Step 3: Cross multiply
    135,710.73x = 187,303.26 × 75,300.84
  4. Step 4: Simplify right side
    135,710.73x = 14,104,091,499.72
  5. Step 5: Solve for x
    x = 14,104,091,499.72/135,710.73
  6. Step 6: Final answer
    x = 103,927.61

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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.