Home / 105,791.10-158,581.53-53,039.58

Finding the Fourth Proportional to 105,791.10, 158,581.53 and 53,039.58

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Solution

The fourth proportional to 105,791.10, 158,581.53 and 53,039.58 is: 79,506.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,791.10 : 158,581.53 = 53,039.58 : x
  2. Step 2: Convert to fraction form
    105,791.10/158,581.53 = 53,039.58/x
  3. Step 3: Cross multiply
    105,791.10x = 158,581.53 × 53,039.58
  4. Step 4: Simplify right side
    105,791.10x = 8,411,097,746.96
  5. Step 5: Solve for x
    x = 8,411,097,746.96/105,791.10
  6. Step 6: Final answer
    x = 79,506.67

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.