Home / 199,895.02-275,828.46-128,371.92

Finding the Fourth Proportional to 199,895.02, 275,828.46 and 128,371.92

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Solution

The fourth proportional to 199,895.02, 275,828.46 and 128,371.92 is: 177,136.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,895.02 : 275,828.46 = 128,371.92 : x
  2. Step 2: Convert to fraction form
    199,895.02/275,828.46 = 128,371.92/x
  3. Step 3: Cross multiply
    199,895.02x = 275,828.46 × 128,371.92
  4. Step 4: Simplify right side
    199,895.02x = 35,408,629,000.84
  5. Step 5: Solve for x
    x = 35,408,629,000.84/199,895.02
  6. Step 6: Final answer
    x = 177,136.12

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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.