Home / 108,719.40-163,061.64-29,815.20

Finding the Fourth Proportional to 108,719.40, 163,061.64 and 29,815.20

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Solution

The fourth proportional to 108,719.40, 163,061.64 and 29,815.20 is: 44,718.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,719.40 : 163,061.64 = 29,815.20 : x
  2. Step 2: Convert to fraction form
    108,719.40/163,061.64 = 29,815.20/x
  3. Step 3: Cross multiply
    108,719.40x = 163,061.64 × 29,815.20
  4. Step 4: Simplify right side
    108,719.40x = 4,861,715,408.93
  5. Step 5: Solve for x
    x = 4,861,715,408.93/108,719.40
  6. Step 6: Final answer
    x = 44,718.01

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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.