Home / 178,268.52-266,885.79-138,705.69

Finding the Fourth Proportional to 178,268.52, 266,885.79 and 138,705.69

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Solution

The fourth proportional to 178,268.52, 266,885.79 and 138,705.69 is: 207,656.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,268.52 : 266,885.79 = 138,705.69 : x
  2. Step 2: Convert to fraction form
    178,268.52/266,885.79 = 138,705.69/x
  3. Step 3: Cross multiply
    178,268.52x = 266,885.79 × 138,705.69
  4. Step 4: Simplify right side
    178,268.52x = 37,018,577,653.15
  5. Step 5: Solve for x
    x = 37,018,577,653.15/178,268.52
  6. Step 6: Final answer
    x = 207,656.28

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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.