Home / 191,929.10-287,930.55-73,591.21

Finding the Fourth Proportional to 191,929.10, 287,930.55 and 73,591.21

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Solution

The fourth proportional to 191,929.10, 287,930.55 and 73,591.21 is: 110,400.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,929.10 : 287,930.55 = 73,591.21 : x
  2. Step 2: Convert to fraction form
    191,929.10/287,930.55 = 73,591.21/x
  3. Step 3: Cross multiply
    191,929.10x = 287,930.55 × 73,591.21
  4. Step 4: Simplify right side
    191,929.10x = 21,189,157,570.47
  5. Step 5: Solve for x
    x = 21,189,157,570.47/191,929.10
  6. Step 6: Final answer
    x = 110,400.96

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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.