Home / 90,774.04-135,898.08-75,814.96

Finding the Fourth Proportional to 90,774.04, 135,898.08 and 75,814.96

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Solution

The fourth proportional to 90,774.04, 135,898.08 and 75,814.96 is: 113,502.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,774.04 : 135,898.08 = 75,814.96 : x
  2. Step 2: Convert to fraction form
    90,774.04/135,898.08 = 75,814.96/x
  3. Step 3: Cross multiply
    90,774.04x = 135,898.08 × 75,814.96
  4. Step 4: Simplify right side
    90,774.04x = 10,303,107,499.28
  5. Step 5: Solve for x
    x = 10,303,107,499.28/90,774.04
  6. Step 6: Final answer
    x = 113,502.80

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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.