Home / 90,184.76-135,160.04-36,814.21

Finding the Fourth Proportional to 90,184.76, 135,160.04 and 36,814.21

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Solution

The fourth proportional to 90,184.76, 135,160.04 and 36,814.21 is: 55,173.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,184.76 : 135,160.04 = 36,814.21 : x
  2. Step 2: Convert to fraction form
    90,184.76/135,160.04 = 36,814.21/x
  3. Step 3: Cross multiply
    90,184.76x = 135,160.04 × 36,814.21
  4. Step 4: Simplify right side
    90,184.76x = 4,975,810,610.58
  5. Step 5: Solve for x
    x = 4,975,810,610.58/90,184.76
  6. Step 6: Final answer
    x = 55,173.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.