Home / 134,909.64-186,199.67-80,465.30

Finding the Fourth Proportional to 134,909.64, 186,199.67 and 80,465.30

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Solution

The fourth proportional to 134,909.64, 186,199.67 and 80,465.30 is: 111,056.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,909.64 : 186,199.67 = 80,465.30 : x
  2. Step 2: Convert to fraction form
    134,909.64/186,199.67 = 80,465.30/x
  3. Step 3: Cross multiply
    134,909.64x = 186,199.67 × 80,465.30
  4. Step 4: Simplify right side
    134,909.64x = 14,982,612,306.45
  5. Step 5: Solve for x
    x = 14,982,612,306.45/134,909.64
  6. Step 6: Final answer
    x = 111,056.65

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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.