Home / 154,180.15-212,690.68-103,195.01

Finding the Fourth Proportional to 154,180.15, 212,690.68 and 103,195.01

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Solution

The fourth proportional to 154,180.15, 212,690.68 and 103,195.01 is: 142,356.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,180.15 : 212,690.68 = 103,195.01 : x
  2. Step 2: Convert to fraction form
    154,180.15/212,690.68 = 103,195.01/x
  3. Step 3: Cross multiply
    154,180.15x = 212,690.68 × 103,195.01
  4. Step 4: Simplify right side
    154,180.15x = 21,948,617,123.25
  5. Step 5: Solve for x
    x = 21,948,617,123.25/154,180.15
  6. Step 6: Final answer
    x = 142,356.96

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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.