Home / 112,104.81-154,709.87-66,772.53

Finding the Fourth Proportional to 112,104.81, 154,709.87 and 66,772.53

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Solution

The fourth proportional to 112,104.81, 154,709.87 and 66,772.53 is: 92,149.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,104.81 : 154,709.87 = 66,772.53 : x
  2. Step 2: Convert to fraction form
    112,104.81/154,709.87 = 66,772.53/x
  3. Step 3: Cross multiply
    112,104.81x = 154,709.87 × 66,772.53
  4. Step 4: Simplify right side
    112,104.81x = 10,330,369,102.01
  5. Step 5: Solve for x
    x = 10,330,369,102.01/112,104.81
  6. Step 6: Final answer
    x = 92,149.20

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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.