Home / 191,928.20-287,525.10-103,152.20

Finding the Fourth Proportional to 191,928.20, 287,525.10 and 103,152.20

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Solution

The fourth proportional to 191,928.20, 287,525.10 and 103,152.20 is: 154,530.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,928.20 : 287,525.10 = 103,152.20 : x
  2. Step 2: Convert to fraction form
    191,928.20/287,525.10 = 103,152.20/x
  3. Step 3: Cross multiply
    191,928.20x = 287,525.10 × 103,152.20
  4. Step 4: Simplify right side
    191,928.20x = 29,658,846,620.22
  5. Step 5: Solve for x
    x = 29,658,846,620.22/191,928.20
  6. Step 6: Final answer
    x = 154,530.95

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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.