Home / 146,186.10-219,169.80-79,701.30

Finding the Fourth Proportional to 146,186.10, 219,169.80 and 79,701.30

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Solution

The fourth proportional to 146,186.10, 219,169.80 and 79,701.30 is: 119,492.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,186.10 : 219,169.80 = 79,701.30 : x
  2. Step 2: Convert to fraction form
    146,186.10/219,169.80 = 79,701.30/x
  3. Step 3: Cross multiply
    146,186.10x = 219,169.80 × 79,701.30
  4. Step 4: Simplify right side
    146,186.10x = 17,468,117,980.74
  5. Step 5: Solve for x
    x = 17,468,117,980.74/146,186.10
  6. Step 6: Final answer
    x = 119,492.33

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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.