Home / 142,427.10-196,517.30-85,056.02

Finding the Fourth Proportional to 142,427.10, 196,517.30 and 85,056.02

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Solution

The fourth proportional to 142,427.10, 196,517.30 and 85,056.02 is: 117,358.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,427.10 : 196,517.30 = 85,056.02 : x
  2. Step 2: Convert to fraction form
    142,427.10/196,517.30 = 85,056.02/x
  3. Step 3: Cross multiply
    142,427.10x = 196,517.30 × 85,056.02
  4. Step 4: Simplify right side
    142,427.10x = 16,714,977,991.28
  5. Step 5: Solve for x
    x = 16,714,977,991.28/142,427.10
  6. Step 6: Final answer
    x = 117,358.13

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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.