Home / 178,743.78-268,228.67-99,909.72

Finding the Fourth Proportional to 178,743.78, 268,228.67 and 99,909.72

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Solution

The fourth proportional to 178,743.78, 268,228.67 and 99,909.72 is: 149,927.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,743.78 : 268,228.67 = 99,909.72 : x
  2. Step 2: Convert to fraction form
    178,743.78/268,228.67 = 99,909.72/x
  3. Step 3: Cross multiply
    178,743.78x = 268,228.67 × 99,909.72
  4. Step 4: Simplify right side
    178,743.78x = 26,798,650,816.12
  5. Step 5: Solve for x
    x = 26,798,650,816.12/178,743.78
  6. Step 6: Final answer
    x = 149,927.74

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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.