Home / 112,904.20-169,329.30-65,416.60

Finding the Fourth Proportional to 112,904.20, 169,329.30 and 65,416.60

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Solution

The fourth proportional to 112,904.20, 169,329.30 and 65,416.60 is: 98,109.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,904.20 : 169,329.30 = 65,416.60 : x
  2. Step 2: Convert to fraction form
    112,904.20/169,329.30 = 65,416.60/x
  3. Step 3: Cross multiply
    112,904.20x = 169,329.30 × 65,416.60
  4. Step 4: Simplify right side
    112,904.20x = 11,076,947,086.38
  5. Step 5: Solve for x
    x = 11,076,947,086.38/112,904.20
  6. Step 6: Final answer
    x = 98,109.26

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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.