Home / 102,254.60-153,329.99-76,720.52

Finding the Fourth Proportional to 102,254.60, 153,329.99 and 76,720.52

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Solution

The fourth proportional to 102,254.60, 153,329.99 and 76,720.52 is: 115,041.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,254.60 : 153,329.99 = 76,720.52 : x
  2. Step 2: Convert to fraction form
    102,254.60/153,329.99 = 76,720.52/x
  3. Step 3: Cross multiply
    102,254.60x = 153,329.99 × 76,720.52
  4. Step 4: Simplify right side
    102,254.60x = 11,763,556,564.39
  5. Step 5: Solve for x
    x = 11,763,556,564.39/102,254.60
  6. Step 6: Final answer
    x = 115,041.83

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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.