Home / 153,290.05-211,507.93-89,615.54

Finding the Fourth Proportional to 153,290.05, 211,507.93 and 89,615.54

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Solution

The fourth proportional to 153,290.05, 211,507.93 and 89,615.54 is: 123,650.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,290.05 : 211,507.93 = 89,615.54 : x
  2. Step 2: Convert to fraction form
    153,290.05/211,507.93 = 89,615.54/x
  3. Step 3: Cross multiply
    153,290.05x = 211,507.93 × 89,615.54
  4. Step 4: Simplify right side
    153,290.05x = 18,954,397,361.23
  5. Step 5: Solve for x
    x = 18,954,397,361.23/153,290.05
  6. Step 6: Final answer
    x = 123,650.54

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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.