Home / 131,873.50-181,985.43-72,256.22

Finding the Fourth Proportional to 131,873.50, 181,985.43 and 72,256.22

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Solution

The fourth proportional to 131,873.50, 181,985.43 and 72,256.22 is: 99,713.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,873.50 : 181,985.43 = 72,256.22 : x
  2. Step 2: Convert to fraction form
    131,873.50/181,985.43 = 72,256.22/x
  3. Step 3: Cross multiply
    131,873.50x = 181,985.43 × 72,256.22
  4. Step 4: Simplify right side
    131,873.50x = 13,149,579,266.87
  5. Step 5: Solve for x
    x = 13,149,579,266.87/131,873.50
  6. Step 6: Final answer
    x = 99,713.58

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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.