Home / 117,555.83-162,276.69-79,367.11

Finding the Fourth Proportional to 117,555.83, 162,276.69 and 79,367.11

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Solution

The fourth proportional to 117,555.83, 162,276.69 and 79,367.11 is: 109,560.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,555.83 : 162,276.69 = 79,367.11 : x
  2. Step 2: Convert to fraction form
    117,555.83/162,276.69 = 79,367.11/x
  3. Step 3: Cross multiply
    117,555.83x = 162,276.69 × 79,367.11
  4. Step 4: Simplify right side
    117,555.83x = 12,879,432,108.51
  5. Step 5: Solve for x
    x = 12,879,432,108.51/117,555.83
  6. Step 6: Final answer
    x = 109,560.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.