Home / 191,956.20-287,567.10-103,180.20

Finding the Fourth Proportional to 191,956.20, 287,567.10 and 103,180.20

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Solution

The fourth proportional to 191,956.20, 287,567.10 and 103,180.20 is: 154,572.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,956.20 : 287,567.10 = 103,180.20 : x
  2. Step 2: Convert to fraction form
    191,956.20/287,567.10 = 103,180.20/x
  3. Step 3: Cross multiply
    191,956.20x = 287,567.10 × 103,180.20
  4. Step 4: Simplify right side
    191,956.20x = 29,671,230,891.42
  5. Step 5: Solve for x
    x = 29,671,230,891.42/191,956.20
  6. Step 6: Final answer
    x = 154,572.92

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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.