Home / 115,421.23-158,126.33-111,105.14

Finding the Fourth Proportional to 115,421.23, 158,126.33 and 111,105.14

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Solution

The fourth proportional to 115,421.23, 158,126.33 and 111,105.14 is: 152,213.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,421.23 : 158,126.33 = 111,105.14 : x
  2. Step 2: Convert to fraction form
    115,421.23/158,126.33 = 111,105.14/x
  3. Step 3: Cross multiply
    115,421.23x = 158,126.33 × 111,105.14
  4. Step 4: Simplify right side
    115,421.23x = 17,568,648,032.34
  5. Step 5: Solve for x
    x = 17,568,648,032.34/115,421.23
  6. Step 6: Final answer
    x = 152,213.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.