Home / 117,427.78-162,045.21-67,130.02

Finding the Fourth Proportional to 117,427.78, 162,045.21 and 67,130.02

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Solution

The fourth proportional to 117,427.78, 162,045.21 and 67,130.02 is: 92,636.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,427.78 : 162,045.21 = 67,130.02 : x
  2. Step 2: Convert to fraction form
    117,427.78/162,045.21 = 67,130.02/x
  3. Step 3: Cross multiply
    117,427.78x = 162,045.21 × 67,130.02
  4. Step 4: Simplify right side
    117,427.78x = 10,878,098,188.20
  5. Step 5: Solve for x
    x = 10,878,098,188.20/117,427.78
  6. Step 6: Final answer
    x = 92,636.50

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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.