Home / 112,799.71-155,663.63-67,479.58

Finding the Fourth Proportional to 112,799.71, 155,663.63 and 67,479.58

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Solution

The fourth proportional to 112,799.71, 155,663.63 and 67,479.58 is: 93,121.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,799.71 : 155,663.63 = 67,479.58 : x
  2. Step 2: Convert to fraction form
    112,799.71/155,663.63 = 67,479.58/x
  3. Step 3: Cross multiply
    112,799.71x = 155,663.63 × 67,479.58
  4. Step 4: Simplify right side
    112,799.71x = 10,504,116,373.68
  5. Step 5: Solve for x
    x = 10,504,116,373.68/112,799.71
  6. Step 6: Final answer
    x = 93,121.84

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1.5x scale

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.