Home / 108,521.20-162,563.10-61,719.40

Finding the Fourth Proportional to 108,521.20, 162,563.10 and 61,719.40

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Solution

The fourth proportional to 108,521.20, 162,563.10 and 61,719.40 is: 92,454.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,521.20 : 162,563.10 = 61,719.40 : x
  2. Step 2: Convert to fraction form
    108,521.20/162,563.10 = 61,719.40/x
  3. Step 3: Cross multiply
    108,521.20x = 162,563.10 × 61,719.40
  4. Step 4: Simplify right side
    108,521.20x = 10,033,296,994.14
  5. Step 5: Solve for x
    x = 10,033,296,994.14/108,521.20
  6. Step 6: Final answer
    x = 92,454.72

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.