Home / 113,513.08-170,420.12-96,979.36

Finding the Fourth Proportional to 113,513.08, 170,420.12 and 96,979.36

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Solution

The fourth proportional to 113,513.08, 170,420.12 and 96,979.36 is: 145,597.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,513.08 : 170,420.12 = 96,979.36 : x
  2. Step 2: Convert to fraction form
    113,513.08/170,420.12 = 96,979.36/x
  3. Step 3: Cross multiply
    113,513.08x = 170,420.12 × 96,979.36
  4. Step 4: Simplify right side
    113,513.08x = 16,527,234,168.72
  5. Step 5: Solve for x
    x = 16,527,234,168.72/113,513.08
  6. Step 6: Final answer
    x = 145,597.62

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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.