Home / 112,913.26-155,820.04-65,166.60

Finding the Fourth Proportional to 112,913.26, 155,820.04 and 65,166.60

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Solution

The fourth proportional to 112,913.26, 155,820.04 and 65,166.60 is: 89,929.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,913.26 : 155,820.04 = 65,166.60 : x
  2. Step 2: Convert to fraction form
    112,913.26/155,820.04 = 65,166.60/x
  3. Step 3: Cross multiply
    112,913.26x = 155,820.04 × 65,166.60
  4. Step 4: Simplify right side
    112,913.26x = 10,154,262,218.66
  5. Step 5: Solve for x
    x = 10,154,262,218.66/112,913.26
  6. Step 6: Final answer
    x = 89,929.76

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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.