Home / 153,022.24-211,169.20-85,039.36

Finding the Fourth Proportional to 153,022.24, 211,169.20 and 85,039.36

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Solution

The fourth proportional to 153,022.24, 211,169.20 and 85,039.36 is: 117,353.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,022.24 : 211,169.20 = 85,039.36 : x
  2. Step 2: Convert to fraction form
    153,022.24/211,169.20 = 85,039.36/x
  3. Step 3: Cross multiply
    153,022.24x = 211,169.20 × 85,039.36
  4. Step 4: Simplify right side
    153,022.24x = 17,957,693,619.71
  5. Step 5: Solve for x
    x = 17,957,693,619.71/153,022.24
  6. Step 6: Final answer
    x = 117,353.49

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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.