Home / 178,989.07-247,005.83-98,421.79

Finding the Fourth Proportional to 178,989.07, 247,005.83 and 98,421.79

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Solution

The fourth proportional to 178,989.07, 247,005.83 and 98,421.79 is: 135,822.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,989.07 : 247,005.83 = 98,421.79 : x
  2. Step 2: Convert to fraction form
    178,989.07/247,005.83 = 98,421.79/x
  3. Step 3: Cross multiply
    178,989.07x = 247,005.83 × 98,421.79
  4. Step 4: Simplify right side
    178,989.07x = 24,310,755,929.04
  5. Step 5: Solve for x
    x = 24,310,755,929.04/178,989.07
  6. Step 6: Final answer
    x = 135,822.57

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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.