Home / 134,136.56-185,165.20-90,538.56

Finding the Fourth Proportional to 134,136.56, 185,165.20 and 90,538.56

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Solution

The fourth proportional to 134,136.56, 185,165.20 and 90,538.56 is: 124,981.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,136.56 : 185,165.20 = 90,538.56 : x
  2. Step 2: Convert to fraction form
    134,136.56/185,165.20 = 90,538.56/x
  3. Step 3: Cross multiply
    134,136.56x = 185,165.20 × 90,538.56
  4. Step 4: Simplify right side
    134,136.56x = 16,764,590,570.11
  5. Step 5: Solve for x
    x = 16,764,590,570.11/134,136.56
  6. Step 6: Final answer
    x = 124,981.52

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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.