Home / 131,723.70-181,776.87-75,136.02

Finding the Fourth Proportional to 131,723.70, 181,776.87 and 75,136.02

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Solution

The fourth proportional to 131,723.70, 181,776.87 and 75,136.02 is: 103,686.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,723.70 : 181,776.87 = 75,136.02 : x
  2. Step 2: Convert to fraction form
    131,723.70/181,776.87 = 75,136.02/x
  3. Step 3: Cross multiply
    131,723.70x = 181,776.87 × 75,136.02
  4. Step 4: Simplify right side
    131,723.70x = 13,657,990,539.86
  5. Step 5: Solve for x
    x = 13,657,990,539.86/131,723.70
  6. Step 6: Final answer
    x = 103,686.66

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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.