Home / 131,727.18-181,782.24-71,296.50

Finding the Fourth Proportional to 131,727.18, 181,782.24 and 71,296.50

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Solution

The fourth proportional to 131,727.18, 181,782.24 and 71,296.50 is: 98,388.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,727.18 : 181,782.24 = 71,296.50 : x
  2. Step 2: Convert to fraction form
    131,727.18/181,782.24 = 71,296.50/x
  3. Step 3: Cross multiply
    131,727.18x = 181,782.24 × 71,296.50
  4. Step 4: Simplify right side
    131,727.18x = 12,960,437,474.16
  5. Step 5: Solve for x
    x = 12,960,437,474.16/131,727.18
  6. Step 6: Final answer
    x = 98,388.48

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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.