Home / 112,968.64-155,880.51-67,635.76

Finding the Fourth Proportional to 112,968.64, 155,880.51 and 67,635.76

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Solution

The fourth proportional to 112,968.64, 155,880.51 and 67,635.76 is: 93,327.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,968.64 : 155,880.51 = 67,635.76 : x
  2. Step 2: Convert to fraction form
    112,968.64/155,880.51 = 67,635.76/x
  3. Step 3: Cross multiply
    112,968.64x = 155,880.51 × 67,635.76
  4. Step 4: Simplify right side
    112,968.64x = 10,543,096,763.04
  5. Step 5: Solve for x
    x = 10,543,096,763.04/112,968.64
  6. Step 6: Final answer
    x = 93,327.64

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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.