Home / 105,021.60-157,367.28-65,519.52

Finding the Fourth Proportional to 105,021.60, 157,367.28 and 65,519.52

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Solution

The fourth proportional to 105,021.60, 157,367.28 and 65,519.52 is: 98,176.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,021.60 : 157,367.28 = 65,519.52 : x
  2. Step 2: Convert to fraction form
    105,021.60/157,367.28 = 65,519.52/x
  3. Step 3: Cross multiply
    105,021.60x = 157,367.28 × 65,519.52
  4. Step 4: Simplify right side
    105,021.60x = 10,310,628,649.31
  5. Step 5: Solve for x
    x = 10,310,628,649.31/105,021.60
  6. Step 6: Final answer
    x = 98,176.27

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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.