Home / 109,051.55-150,494.63-66,039.06

Finding the Fourth Proportional to 109,051.55, 150,494.63 and 66,039.06

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Solution

The fourth proportional to 109,051.55, 150,494.63 and 66,039.06 is: 91,136.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,051.55 : 150,494.63 = 66,039.06 : x
  2. Step 2: Convert to fraction form
    109,051.55/150,494.63 = 66,039.06/x
  3. Step 3: Cross multiply
    109,051.55x = 150,494.63 × 66,039.06
  4. Step 4: Simplify right side
    109,051.55x = 9,938,524,134.41
  5. Step 5: Solve for x
    x = 9,938,524,134.41/109,051.55
  6. Step 6: Final answer
    x = 91,136.02

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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.