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Finding the Fourth Proportional to 135,480.66, 186,984.63 and 81,773.34

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Solution

The fourth proportional to 135,480.66, 186,984.63 and 81,773.34 is: 112,860.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,480.66 : 186,984.63 = 81,773.34 : x
  2. Step 2: Convert to fraction form
    135,480.66/186,984.63 = 81,773.34/x
  3. Step 3: Cross multiply
    135,480.66x = 186,984.63 × 81,773.34
  4. Step 4: Simplify right side
    135,480.66x = 15,290,357,723.76
  5. Step 5: Solve for x
    x = 15,290,357,723.76/135,480.66
  6. Step 6: Final answer
    x = 112,860.08

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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.