Home / 140,352.19-193,683.72-76,688.62

Finding the Fourth Proportional to 140,352.19, 193,683.72 and 76,688.62

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Solution

The fourth proportional to 140,352.19, 193,683.72 and 76,688.62 is: 105,829.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,352.19 : 193,683.72 = 76,688.62 : x
  2. Step 2: Convert to fraction form
    140,352.19/193,683.72 = 76,688.62/x
  3. Step 3: Cross multiply
    140,352.19x = 193,683.72 × 76,688.62
  4. Step 4: Simplify right side
    140,352.19x = 14,853,337,203.27
  5. Step 5: Solve for x
    x = 14,853,337,203.27/140,352.19
  6. Step 6: Final answer
    x = 105,829.04

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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.