Home / 121,434.21-181,995.21-58,159.44

Finding the Fourth Proportional to 121,434.21, 181,995.21 and 58,159.44

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Solution

The fourth proportional to 121,434.21, 181,995.21 and 58,159.44 is: 87,164.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,434.21 : 181,995.21 = 58,159.44 : x
  2. Step 2: Convert to fraction form
    121,434.21/181,995.21 = 58,159.44/x
  3. Step 3: Cross multiply
    121,434.21x = 181,995.21 × 58,159.44
  4. Step 4: Simplify right side
    121,434.21x = 10,584,739,496.28
  5. Step 5: Solve for x
    x = 10,584,739,496.28/121,434.21
  6. Step 6: Final answer
    x = 87,164.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.