Home / 117,375.80-162,004.19-72,077.58

Finding the Fourth Proportional to 117,375.80, 162,004.19 and 72,077.58

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Solution

The fourth proportional to 117,375.80, 162,004.19 and 72,077.58 is: 99,482.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,375.80 : 162,004.19 = 72,077.58 : x
  2. Step 2: Convert to fraction form
    117,375.80/162,004.19 = 72,077.58/x
  3. Step 3: Cross multiply
    117,375.80x = 162,004.19 × 72,077.58
  4. Step 4: Simplify right side
    117,375.80x = 11,676,869,604.67
  5. Step 5: Solve for x
    x = 11,676,869,604.67/117,375.80
  6. Step 6: Final answer
    x = 99,482.77

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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.