Home / 191,116.88-263,718.39-105,061.70

Finding the Fourth Proportional to 191,116.88, 263,718.39 and 105,061.70

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Solution

The fourth proportional to 191,116.88, 263,718.39 and 105,061.70 is: 144,972.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,116.88 : 263,718.39 = 105,061.70 : x
  2. Step 2: Convert to fraction form
    191,116.88/263,718.39 = 105,061.70/x
  3. Step 3: Cross multiply
    191,116.88x = 263,718.39 × 105,061.70
  4. Step 4: Simplify right side
    191,116.88x = 27,706,702,374.66
  5. Step 5: Solve for x
    x = 27,706,702,374.66/191,116.88
  6. Step 6: Final answer
    x = 144,972.55

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.