Home / 104,301.67-155,110.70-100,980.19

Finding the Fourth Proportional to 104,301.67, 155,110.70 and 100,980.19

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Solution

The fourth proportional to 104,301.67, 155,110.70 and 100,980.19 is: 150,171.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,301.67 : 155,110.70 = 100,980.19 : x
  2. Step 2: Convert to fraction form
    104,301.67/155,110.70 = 100,980.19/x
  3. Step 3: Cross multiply
    104,301.67x = 155,110.70 × 100,980.19
  4. Step 4: Simplify right side
    104,301.67x = 15,663,107,957.03
  5. Step 5: Solve for x
    x = 15,663,107,957.03/104,301.67
  6. Step 6: Final answer
    x = 150,171.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.