Home / 283,136.64-424,709.04-72,774.78

Finding the Fourth Proportional to 283,136.64, 424,709.04 and 72,774.78

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Solution

The fourth proportional to 283,136.64, 424,709.04 and 72,774.78 is: 109,163.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,136.64 : 424,709.04 = 72,774.78 : x
  2. Step 2: Convert to fraction form
    283,136.64/424,709.04 = 72,774.78/x
  3. Step 3: Cross multiply
    283,136.64x = 424,709.04 × 72,774.78
  4. Step 4: Simplify right side
    283,136.64x = 30,908,106,950.01
  5. Step 5: Solve for x
    x = 30,908,106,950.01/283,136.64
  6. Step 6: Final answer
    x = 109,163.22

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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.