Home / 100,132,139.54-138,166,568.70-58,323,085.58

Finding the Fourth Proportional to 100,132,139.54, 138,166,568.70 and 58,323,085.58

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Solution

The fourth proportional to 100,132,139.54, 138,166,568.70 and 58,323,085.58 is: 80,476,664.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,132,139.54 : 138,166,568.70 = 58,323,085.58 : x
  2. Step 2: Convert to fraction form
    100,132,139.54/138,166,568.70 = 58,323,085.58/x
  3. Step 3: Cross multiply
    100,132,139.54x = 138,166,568.70 × 58,323,085.58
  4. Step 4: Simplify right side
    100,132,139.54x = 8,058,300,610,585,048
  5. Step 5: Solve for x
    x = 8,058,300,610,585,048/100,132,139.54
  6. Step 6: Final answer
    x = 80,476,664.61

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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.