Home / 135,276.64-186,717.20-77,922.56

Finding the Fourth Proportional to 135,276.64, 186,717.20 and 77,922.56

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Solution

The fourth proportional to 135,276.64, 186,717.20 and 77,922.56 is: 107,553.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,276.64 : 186,717.20 = 77,922.56 : x
  2. Step 2: Convert to fraction form
    135,276.64/186,717.20 = 77,922.56/x
  3. Step 3: Cross multiply
    135,276.64x = 186,717.20 × 77,922.56
  4. Step 4: Simplify right side
    135,276.64x = 14,549,482,220.03
  5. Step 5: Solve for x
    x = 14,549,482,220.03/135,276.64
  6. Step 6: Final answer
    x = 107,553.55

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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.