Home / 131,723.84-181,777.20-75,136.16

Finding the Fourth Proportional to 131,723.84, 181,777.20 and 75,136.16

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Solution

The fourth proportional to 131,723.84, 181,777.20 and 75,136.16 is: 103,686.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,723.84 : 181,777.20 = 75,136.16 : x
  2. Step 2: Convert to fraction form
    131,723.84/181,777.20 = 75,136.16/x
  3. Step 3: Cross multiply
    131,723.84x = 181,777.20 × 75,136.16
  4. Step 4: Simplify right side
    131,723.84x = 13,658,040,783.55
  5. Step 5: Solve for x
    x = 13,658,040,783.55/131,723.84
  6. Step 6: Final answer
    x = 103,686.93

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1.5x scale

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.