Home / 191,821.14-264,707.10-105,783.76

Finding the Fourth Proportional to 191,821.14, 264,707.10 and 105,783.76

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Solution

The fourth proportional to 191,821.14, 264,707.10 and 105,783.76 is: 145,978.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,821.14 : 264,707.10 = 105,783.76 : x
  2. Step 2: Convert to fraction form
    191,821.14/264,707.10 = 105,783.76/x
  3. Step 3: Cross multiply
    191,821.14x = 264,707.10 × 105,783.76
  4. Step 4: Simplify right side
    191,821.14x = 28,001,712,336.70
  5. Step 5: Solve for x
    x = 28,001,712,336.70/191,821.14
  6. Step 6: Final answer
    x = 145,978.24

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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.