Home / 135,562.51-187,033.49-78,194.13

Finding the Fourth Proportional to 135,562.51, 187,033.49 and 78,194.13

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Solution

The fourth proportional to 135,562.51, 187,033.49 and 78,194.13 is: 107,883.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,562.51 : 187,033.49 = 78,194.13 : x
  2. Step 2: Convert to fraction form
    135,562.51/187,033.49 = 78,194.13/x
  3. Step 3: Cross multiply
    135,562.51x = 187,033.49 × 78,194.13
  4. Step 4: Simplify right side
    135,562.51x = 14,624,920,232.30
  5. Step 5: Solve for x
    x = 14,624,920,232.30/135,562.51
  6. Step 6: Final answer
    x = 107,883.22

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1.5x scale

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.