Home / 203,165.02-280,359.47-112,515.59

Finding the Fourth Proportional to 203,165.02, 280,359.47 and 112,515.59

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Solution

The fourth proportional to 203,165.02, 280,359.47 and 112,515.59 is: 155,266.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,165.02 : 280,359.47 = 112,515.59 : x
  2. Step 2: Convert to fraction form
    203,165.02/280,359.47 = 112,515.59/x
  3. Step 3: Cross multiply
    203,165.02x = 280,359.47 × 112,515.59
  4. Step 4: Simplify right side
    203,165.02x = 31,544,809,777.34
  5. Step 5: Solve for x
    x = 31,544,809,777.34/203,165.02
  6. Step 6: Final answer
    x = 155,266.94

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1.5x scale

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.