Home / 191,411.64-287,095.57-51,181.20

Finding the Fourth Proportional to 191,411.64, 287,095.57 and 51,181.20

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Solution

The fourth proportional to 191,411.64, 287,095.57 and 51,181.20 is: 76,765.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,411.64 : 287,095.57 = 51,181.20 : x
  2. Step 2: Convert to fraction form
    191,411.64/287,095.57 = 51,181.20/x
  3. Step 3: Cross multiply
    191,411.64x = 287,095.57 × 51,181.20
  4. Step 4: Simplify right side
    191,411.64x = 14,693,896,632.98
  5. Step 5: Solve for x
    x = 14,693,896,632.98/191,411.64
  6. Step 6: Final answer
    x = 76,765.95

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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.