Home / 191,686.13-264,526.83-105,645.09

Finding the Fourth Proportional to 191,686.13, 264,526.83 and 105,645.09

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Solution

The fourth proportional to 191,686.13, 264,526.83 and 105,645.09 is: 145,790.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,686.13 : 264,526.83 = 105,645.09 : x
  2. Step 2: Convert to fraction form
    191,686.13/264,526.83 = 105,645.09/x
  3. Step 3: Cross multiply
    191,686.13x = 264,526.83 × 105,645.09
  4. Step 4: Simplify right side
    191,686.13x = 27,945,960,762.76
  5. Step 5: Solve for x
    x = 27,945,960,762.76/191,686.13
  6. Step 6: Final answer
    x = 145,790.21

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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.