Home / 191,947.84-287,921.70-103,079.09

Finding the Fourth Proportional to 191,947.84, 287,921.70 and 103,079.09

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Solution

The fourth proportional to 191,947.84, 287,921.70 and 103,079.09 is: 154,618.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,947.84 : 287,921.70 = 103,079.09 : x
  2. Step 2: Convert to fraction form
    191,947.84/287,921.70 = 103,079.09/x
  3. Step 3: Cross multiply
    191,947.84x = 287,921.70 × 103,079.09
  4. Step 4: Simplify right side
    191,947.84x = 29,678,707,547.06
  5. Step 5: Solve for x
    x = 29,678,707,547.06/191,947.84
  6. Step 6: Final answer
    x = 154,618.61

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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.