Home / 117,720.05-162,452.84-64,005.08

Finding the Fourth Proportional to 117,720.05, 162,452.84 and 64,005.08

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Solution

The fourth proportional to 117,720.05, 162,452.84 and 64,005.08 is: 88,326.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,720.05 : 162,452.84 = 64,005.08 : x
  2. Step 2: Convert to fraction form
    117,720.05/162,452.84 = 64,005.08/x
  3. Step 3: Cross multiply
    117,720.05x = 162,452.84 × 64,005.08
  4. Step 4: Simplify right side
    117,720.05x = 10,397,805,888.14
  5. Step 5: Solve for x
    x = 10,397,805,888.14/117,720.05
  6. Step 6: Final answer
    x = 88,326.55

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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.