Home / 117,686.83-162,408.93-63,972.01

Finding the Fourth Proportional to 117,686.83, 162,408.93 and 63,972.01

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Solution

The fourth proportional to 117,686.83, 162,408.93 and 63,972.01 is: 88,281.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,686.83 : 162,408.93 = 63,972.01 : x
  2. Step 2: Convert to fraction form
    117,686.83/162,408.93 = 63,972.01/x
  3. Step 3: Cross multiply
    117,686.83x = 162,408.93 × 63,972.01
  4. Step 4: Simplify right side
    117,686.83x = 10,389,625,694.05
  5. Step 5: Solve for x
    x = 10,389,625,694.05/117,686.83
  6. Step 6: Final answer
    x = 88,281.97

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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.