Home / 117,967.53-162,903.38-74,961.20

Finding the Fourth Proportional to 117,967.53, 162,903.38 and 74,961.20

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Solution

The fourth proportional to 117,967.53, 162,903.38 and 74,961.20 is: 103,515.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,967.53 : 162,903.38 = 74,961.20 : x
  2. Step 2: Convert to fraction form
    117,967.53/162,903.38 = 74,961.20/x
  3. Step 3: Cross multiply
    117,967.53x = 162,903.38 × 74,961.20
  4. Step 4: Simplify right side
    117,967.53x = 12,211,432,848.86
  5. Step 5: Solve for x
    x = 12,211,432,848.86/117,967.53
  6. Step 6: Final answer
    x = 103,515.20

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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.