Home / 191,590.07-287,436.96-71,659.17

Finding the Fourth Proportional to 191,590.07, 287,436.96 and 71,659.17

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Solution

The fourth proportional to 191,590.07, 287,436.96 and 71,659.17 is: 107,508.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,590.07 : 287,436.96 = 71,659.17 : x
  2. Step 2: Convert to fraction form
    191,590.07/287,436.96 = 71,659.17/x
  3. Step 3: Cross multiply
    191,590.07x = 287,436.96 × 71,659.17
  4. Step 4: Simplify right side
    191,590.07x = 20,597,493,980.92
  5. Step 5: Solve for x
    x = 20,597,493,980.92/191,590.07
  6. Step 6: Final answer
    x = 107,508.15

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1.5x scale

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.