Home / 189,710.02-261,825.78-109,136.08

Finding the Fourth Proportional to 189,710.02, 261,825.78 and 109,136.08

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Solution

The fourth proportional to 189,710.02, 261,825.78 and 109,136.08 is: 150,622.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,710.02 : 261,825.78 = 109,136.08 : x
  2. Step 2: Convert to fraction form
    189,710.02/261,825.78 = 109,136.08/x
  3. Step 3: Cross multiply
    189,710.02x = 261,825.78 × 109,136.08
  4. Step 4: Simplify right side
    189,710.02x = 28,574,639,272.14
  5. Step 5: Solve for x
    x = 28,574,639,272.14/189,710.02
  6. Step 6: Final answer
    x = 150,622.72

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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.