Home / 117,426.16-176,158.80-38,519.20

Finding the Fourth Proportional to 117,426.16, 176,158.80 and 38,519.20

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Solution

The fourth proportional to 117,426.16, 176,158.80 and 38,519.20 is: 57,785.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,426.16 : 176,158.80 = 38,519.20 : x
  2. Step 2: Convert to fraction form
    117,426.16/176,158.80 = 38,519.20/x
  3. Step 3: Cross multiply
    117,426.16x = 176,158.80 × 38,519.20
  4. Step 4: Simplify right side
    117,426.16x = 6,785,496,048.96
  5. Step 5: Solve for x
    x = 6,785,496,048.96/117,426.16
  6. Step 6: Final answer
    x = 57,785.22

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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.