Home / 112,110.40-154,706.52-69,668.02

Finding the Fourth Proportional to 112,110.40, 154,706.52 and 69,668.02

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Solution

The fourth proportional to 112,110.40, 154,706.52 and 69,668.02 is: 96,138.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,110.40 : 154,706.52 = 69,668.02 : x
  2. Step 2: Convert to fraction form
    112,110.40/154,706.52 = 69,668.02/x
  3. Step 3: Cross multiply
    112,110.40x = 154,706.52 × 69,668.02
  4. Step 4: Simplify right side
    112,110.40x = 10,778,096,929.49
  5. Step 5: Solve for x
    x = 10,778,096,929.49/112,110.40
  6. Step 6: Final answer
    x = 96,138.24

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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.