Home / 121,376.16-182,064.24-79,813.44

Finding the Fourth Proportional to 121,376.16, 182,064.24 and 79,813.44

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Solution

The fourth proportional to 121,376.16, 182,064.24 and 79,813.44 is: 119,720.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,376.16 : 182,064.24 = 79,813.44 : x
  2. Step 2: Convert to fraction form
    121,376.16/182,064.24 = 79,813.44/x
  3. Step 3: Cross multiply
    121,376.16x = 182,064.24 × 79,813.44
  4. Step 4: Simplify right side
    121,376.16x = 14,531,173,295.39
  5. Step 5: Solve for x
    x = 14,531,173,295.39/121,376.16
  6. Step 6: Final answer
    x = 119,720.16

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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.