Home / 191,717.91-287,382.06-79,459.20

Finding the Fourth Proportional to 191,717.91, 287,382.06 and 79,459.20

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Solution

The fourth proportional to 191,717.91, 287,382.06 and 79,459.20 is: 119,108.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,717.91 : 287,382.06 = 79,459.20 : x
  2. Step 2: Convert to fraction form
    191,717.91/287,382.06 = 79,459.20/x
  3. Step 3: Cross multiply
    191,717.91x = 287,382.06 × 79,459.20
  4. Step 4: Simplify right side
    191,717.91x = 22,835,148,581.95
  5. Step 5: Solve for x
    x = 22,835,148,581.95/191,717.91
  6. Step 6: Final answer
    x = 119,108.06

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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.