Home / 117,988.05-162,817.72-64,269.87

Finding the Fourth Proportional to 117,988.05, 162,817.72 and 64,269.87

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Solution

The fourth proportional to 117,988.05, 162,817.72 and 64,269.87 is: 88,689.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,988.05 : 162,817.72 = 64,269.87 : x
  2. Step 2: Convert to fraction form
    117,988.05/162,817.72 = 64,269.87/x
  3. Step 3: Cross multiply
    117,988.05x = 162,817.72 × 64,269.87
  4. Step 4: Simplify right side
    117,988.05x = 10,464,273,698.10
  5. Step 5: Solve for x
    x = 10,464,273,698.10/117,988.05
  6. Step 6: Final answer
    x = 88,689.27

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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.