Home / 112,799.76-155,648.84-67,461.20

Finding the Fourth Proportional to 112,799.76, 155,648.84 and 67,461.20

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Solution

The fourth proportional to 112,799.76, 155,648.84 and 67,461.20 is: 93,087.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,799.76 : 155,648.84 = 67,461.20 : x
  2. Step 2: Convert to fraction form
    112,799.76/155,648.84 = 67,461.20/x
  3. Step 3: Cross multiply
    112,799.76x = 155,648.84 × 67,461.20
  4. Step 4: Simplify right side
    112,799.76x = 10,500,256,409.46
  5. Step 5: Solve for x
    x = 10,500,256,409.46/112,799.76
  6. Step 6: Final answer
    x = 93,087.58

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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.