Home / 203,927.02-305,934.27-85,530.13

Finding the Fourth Proportional to 203,927.02, 305,934.27 and 85,530.13

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Solution

The fourth proportional to 203,927.02, 305,934.27 and 85,530.13 is: 128,313.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,927.02 : 305,934.27 = 85,530.13 : x
  2. Step 2: Convert to fraction form
    203,927.02/305,934.27 = 85,530.13/x
  3. Step 3: Cross multiply
    203,927.02x = 305,934.27 × 85,530.13
  4. Step 4: Simplify right side
    203,927.02x = 26,166,596,798.98
  5. Step 5: Solve for x
    x = 26,166,596,798.98/203,927.02
  6. Step 6: Final answer
    x = 128,313.54

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.