Home / 135,809.80-187,426.28-75,380.45

Finding the Fourth Proportional to 135,809.80, 187,426.28 and 75,380.45

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Solution

The fourth proportional to 135,809.80, 187,426.28 and 75,380.45 is: 104,029.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,809.80 : 187,426.28 = 75,380.45 : x
  2. Step 2: Convert to fraction form
    135,809.80/187,426.28 = 75,380.45/x
  3. Step 3: Cross multiply
    135,809.80x = 187,426.28 × 75,380.45
  4. Step 4: Simplify right side
    135,809.80x = 14,128,276,579.55
  5. Step 5: Solve for x
    x = 14,128,276,579.55/135,809.80
  6. Step 6: Final answer
    x = 104,029.88

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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.