Home / 191,962.20-287,943.30-92,105.40

Finding the Fourth Proportional to 191,962.20, 287,943.30 and 92,105.40

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Solution

The fourth proportional to 191,962.20, 287,943.30 and 92,105.40 is: 138,158.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,962.20 : 287,943.30 = 92,105.40 : x
  2. Step 2: Convert to fraction form
    191,962.20/287,943.30 = 92,105.40/x
  3. Step 3: Cross multiply
    191,962.20x = 287,943.30 × 92,105.40
  4. Step 4: Simplify right side
    191,962.20x = 26,521,132,823.82
  5. Step 5: Solve for x
    x = 26,521,132,823.82/191,962.20
  6. Step 6: Final answer
    x = 138,158.10

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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.