Home / 191,158.71-263,805.65-105,121.22

Finding the Fourth Proportional to 191,158.71, 263,805.65 and 105,121.22

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Solution

The fourth proportional to 191,158.71, 263,805.65 and 105,121.22 is: 145,070.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,158.71 : 263,805.65 = 105,121.22 : x
  2. Step 2: Convert to fraction form
    191,158.71/263,805.65 = 105,121.22/x
  3. Step 3: Cross multiply
    191,158.71x = 263,805.65 × 105,121.22
  4. Step 4: Simplify right side
    191,158.71x = 27,731,569,926.26
  5. Step 5: Solve for x
    x = 27,731,569,926.26/191,158.71
  6. Step 6: Final answer
    x = 145,070.92

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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.