Home / 154,195.02-212,848.02-100,493.28

Finding the Fourth Proportional to 154,195.02, 212,848.02 and 100,493.28

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Solution

The fourth proportional to 154,195.02, 212,848.02 and 100,493.28 is: 138,719.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,195.02 : 212,848.02 = 100,493.28 : x
  2. Step 2: Convert to fraction form
    154,195.02/212,848.02 = 100,493.28/x
  3. Step 3: Cross multiply
    154,195.02x = 212,848.02 × 100,493.28
  4. Step 4: Simplify right side
    154,195.02x = 21,389,795,671.31
  5. Step 5: Solve for x
    x = 21,389,795,671.31/154,195.02
  6. Step 6: Final answer
    x = 138,719.11

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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.