Home / 149,691.42-206,223.27-104,287.28

Finding the Fourth Proportional to 149,691.42, 206,223.27 and 104,287.28

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Solution

The fourth proportional to 149,691.42, 206,223.27 and 104,287.28 is: 143,671.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,691.42 : 206,223.27 = 104,287.28 : x
  2. Step 2: Convert to fraction form
    149,691.42/206,223.27 = 104,287.28/x
  3. Step 3: Cross multiply
    149,691.42x = 206,223.27 × 104,287.28
  4. Step 4: Simplify right side
    149,691.42x = 21,506,462,869.89
  5. Step 5: Solve for x
    x = 21,506,462,869.89/149,691.42
  6. Step 6: Final answer
    x = 143,671.98

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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.