Home / 209,176.92-288,666.06-113,683.86

Finding the Fourth Proportional to 209,176.92, 288,666.06 and 113,683.86

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Solution

The fourth proportional to 209,176.92, 288,666.06 and 113,683.86 is: 156,884.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,176.92 : 288,666.06 = 113,683.86 : x
  2. Step 2: Convert to fraction form
    209,176.92/288,666.06 = 113,683.86/x
  3. Step 3: Cross multiply
    209,176.92x = 288,666.06 × 113,683.86
  4. Step 4: Simplify right side
    209,176.92x = 32,816,671,951.79
  5. Step 5: Solve for x
    x = 32,816,671,951.79/209,176.92
  6. Step 6: Final answer
    x = 156,884.77

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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.