Home / 117,882.78-162,681.88-64,171.40

Finding the Fourth Proportional to 117,882.78, 162,681.88 and 64,171.40

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Solution

The fourth proportional to 117,882.78, 162,681.88 and 64,171.40 is: 88,558.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,882.78 : 162,681.88 = 64,171.40 : x
  2. Step 2: Convert to fraction form
    117,882.78/162,681.88 = 64,171.40/x
  3. Step 3: Cross multiply
    117,882.78x = 162,681.88 × 64,171.40
  4. Step 4: Simplify right side
    117,882.78x = 10,439,523,994.23
  5. Step 5: Solve for x
    x = 10,439,523,994.23/117,882.78
  6. Step 6: Final answer
    x = 88,558.52

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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.