Home / 131,557.25-181,548.99-71,127.87

Finding the Fourth Proportional to 131,557.25, 181,548.99 and 71,127.87

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Solution

The fourth proportional to 131,557.25, 181,548.99 and 71,127.87 is: 98,156.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,557.25 : 181,548.99 = 71,127.87 : x
  2. Step 2: Convert to fraction form
    131,557.25/181,548.99 = 71,127.87/x
  3. Step 3: Cross multiply
    131,557.25x = 181,548.99 × 71,127.87
  4. Step 4: Simplify right side
    131,557.25x = 12,913,192,959.35
  5. Step 5: Solve for x
    x = 12,913,192,959.35/131,557.25
  6. Step 6: Final answer
    x = 98,156.46

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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.