Home / 131,411.36-181,348.24-71,796.64

Finding the Fourth Proportional to 131,411.36, 181,348.24 and 71,796.64

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Solution

The fourth proportional to 131,411.36, 181,348.24 and 71,796.64 is: 99,079.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,411.36 : 181,348.24 = 71,796.64 : x
  2. Step 2: Convert to fraction form
    131,411.36/181,348.24 = 71,796.64/x
  3. Step 3: Cross multiply
    131,411.36x = 181,348.24 × 71,796.64
  4. Step 4: Simplify right side
    131,411.36x = 13,020,194,301.91
  5. Step 5: Solve for x
    x = 13,020,194,301.91/131,411.36
  6. Step 6: Final answer
    x = 99,079.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.