Home / 191,121.70-263,725.02-105,066.49

Finding the Fourth Proportional to 191,121.70, 263,725.02 and 105,066.49

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Solution

The fourth proportional to 191,121.70, 263,725.02 and 105,066.49 is: 144,979.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,121.70 : 263,725.02 = 105,066.49 : x
  2. Step 2: Convert to fraction form
    191,121.70/263,725.02 = 105,066.49/x
  3. Step 3: Cross multiply
    191,121.70x = 263,725.02 × 105,066.49
  4. Step 4: Simplify right side
    191,121.70x = 27,708,662,176.58
  5. Step 5: Solve for x
    x = 27,708,662,176.58/191,121.70
  6. Step 6: Final answer
    x = 144,979.15

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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.