Home / 156,683.75-235,112.90-84,635.19

Finding the Fourth Proportional to 156,683.75, 235,112.90 and 84,635.19

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Solution

The fourth proportional to 156,683.75, 235,112.90 and 84,635.19 is: 126,999.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,683.75 : 235,112.90 = 84,635.19 : x
  2. Step 2: Convert to fraction form
    156,683.75/235,112.90 = 84,635.19/x
  3. Step 3: Cross multiply
    156,683.75x = 235,112.90 × 84,635.19
  4. Step 4: Simplify right side
    156,683.75x = 19,898,824,539.78
  5. Step 5: Solve for x
    x = 19,898,824,539.78/156,683.75
  6. Step 6: Final answer
    x = 126,999.93

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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.