Home / 131,772.45-181,846.05-71,343.11

Finding the Fourth Proportional to 131,772.45, 181,846.05 and 71,343.11

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Solution

The fourth proportional to 131,772.45, 181,846.05 and 71,343.11 is: 98,453.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,772.45 : 181,846.05 = 71,343.11 : x
  2. Step 2: Convert to fraction form
    131,772.45/181,846.05 = 71,343.11/x
  3. Step 3: Cross multiply
    131,772.45x = 181,846.05 × 71,343.11
  4. Step 4: Simplify right side
    131,772.45x = 12,973,461,838.99
  5. Step 5: Solve for x
    x = 12,973,461,838.99/131,772.45
  6. Step 6: Final answer
    x = 98,453.52

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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.