Home / 191,930.20-287,528.10-103,154.20

Finding the Fourth Proportional to 191,930.20, 287,528.10 and 103,154.20

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Solution

The fourth proportional to 191,930.20, 287,528.10 and 103,154.20 is: 154,533.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,930.20 : 287,528.10 = 103,154.20 : x
  2. Step 2: Convert to fraction form
    191,930.20/287,528.10 = 103,154.20/x
  3. Step 3: Cross multiply
    191,930.20x = 287,528.10 × 103,154.20
  4. Step 4: Simplify right side
    191,930.20x = 29,659,731,133.02
  5. Step 5: Solve for x
    x = 29,659,731,133.02/191,930.20
  6. Step 6: Final answer
    x = 154,533.95

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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.