Home / 191,851.20-287,859.60-103,000.86

Finding the Fourth Proportional to 191,851.20, 287,859.60 and 103,000.86

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Solution

The fourth proportional to 191,851.20, 287,859.60 and 103,000.86 is: 154,545.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,851.20 : 287,859.60 = 103,000.86 : x
  2. Step 2: Convert to fraction form
    191,851.20/287,859.60 = 103,000.86/x
  3. Step 3: Cross multiply
    191,851.20x = 287,859.60 × 103,000.86
  4. Step 4: Simplify right side
    191,851.20x = 29,649,786,359.26
  5. Step 5: Solve for x
    x = 29,649,786,359.26/191,851.20
  6. Step 6: Final answer
    x = 154,545.74

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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.