Home / 191,155.70-263,811.66-105,129.83

Finding the Fourth Proportional to 191,155.70, 263,811.66 and 105,129.83

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Solution

The fourth proportional to 191,155.70, 263,811.66 and 105,129.83 is: 145,088.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,155.70 : 263,811.66 = 105,129.83 : x
  2. Step 2: Convert to fraction form
    191,155.70/263,811.66 = 105,129.83/x
  3. Step 3: Cross multiply
    191,155.70x = 263,811.66 × 105,129.83
  4. Step 4: Simplify right side
    191,155.70x = 27,734,473,648.76
  5. Step 5: Solve for x
    x = 27,734,473,648.76/191,155.70
  6. Step 6: Final answer
    x = 145,088.40

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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.