Home / 191,787.19-264,667.70-105,749.39

Finding the Fourth Proportional to 191,787.19, 264,667.70 and 105,749.39

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Solution

The fourth proportional to 191,787.19, 264,667.70 and 105,749.39 is: 145,934.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,787.19 : 264,667.70 = 105,749.39 : x
  2. Step 2: Convert to fraction form
    191,787.19/264,667.70 = 105,749.39/x
  3. Step 3: Cross multiply
    191,787.19x = 264,667.70 × 105,749.39
  4. Step 4: Simplify right side
    191,787.19x = 27,988,447,827.70
  5. Step 5: Solve for x
    x = 27,988,447,827.70/191,787.19
  6. Step 6: Final answer
    x = 145,934.92

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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.