Home / 135,534.88-187,039.86-75,106.71

Finding the Fourth Proportional to 135,534.88, 187,039.86 and 75,106.71

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Solution

The fourth proportional to 135,534.88, 187,039.86 and 75,106.71 is: 103,648.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,534.88 : 187,039.86 = 75,106.71 : x
  2. Step 2: Convert to fraction form
    135,534.88/187,039.86 = 75,106.71/x
  3. Step 3: Cross multiply
    135,534.88x = 187,039.86 × 75,106.71
  4. Step 4: Simplify right side
    135,534.88x = 14,047,947,588.26
  5. Step 5: Solve for x
    x = 14,047,947,588.26/135,534.88
  6. Step 6: Final answer
    x = 103,648.21

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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.