Home / 113,760.39-170,502.21-80,490.05

Finding the Fourth Proportional to 113,760.39, 170,502.21 and 80,490.05

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Solution

The fourth proportional to 113,760.39, 170,502.21 and 80,490.05 is: 120,637.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,760.39 : 170,502.21 = 80,490.05 : x
  2. Step 2: Convert to fraction form
    113,760.39/170,502.21 = 80,490.05/x
  3. Step 3: Cross multiply
    113,760.39x = 170,502.21 × 80,490.05
  4. Step 4: Simplify right side
    113,760.39x = 13,723,730,555.50
  5. Step 5: Solve for x
    x = 13,723,730,555.50/113,760.39
  6. Step 6: Final answer
    x = 120,637.16

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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.