Home / 102,008.26-140,765.45-56,683.60

Finding the Fourth Proportional to 102,008.26, 140,765.45 and 56,683.60

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Solution

The fourth proportional to 102,008.26, 140,765.45 and 56,683.60 is: 78,220.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,008.26 : 140,765.45 = 56,683.60 : x
  2. Step 2: Convert to fraction form
    102,008.26/140,765.45 = 56,683.60/x
  3. Step 3: Cross multiply
    102,008.26x = 140,765.45 × 56,683.60
  4. Step 4: Simplify right side
    102,008.26x = 7,979,091,826.29
  5. Step 5: Solve for x
    x = 7,979,091,826.29/102,008.26
  6. Step 6: Final answer
    x = 78,220.06

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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.