Home / 121,369.48-182,136.78-74,479.24

Finding the Fourth Proportional to 121,369.48, 182,136.78 and 74,479.24

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Solution

The fourth proportional to 121,369.48, 182,136.78 and 74,479.24 is: 111,769.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,369.48 : 182,136.78 = 74,479.24 : x
  2. Step 2: Convert to fraction form
    121,369.48/182,136.78 = 74,479.24/x
  3. Step 3: Cross multiply
    121,369.48x = 182,136.78 × 74,479.24
  4. Step 4: Simplify right side
    121,369.48x = 13,565,408,950.45
  5. Step 5: Solve for x
    x = 13,565,408,950.45/121,369.48
  6. Step 6: Final answer
    x = 111,769.52

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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.