Home / 153,109.53-211,318.94-88,571.16

Finding the Fourth Proportional to 153,109.53, 211,318.94 and 88,571.16

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Solution

The fourth proportional to 153,109.53, 211,318.94 and 88,571.16 is: 122,244.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,109.53 : 211,318.94 = 88,571.16 : x
  2. Step 2: Convert to fraction form
    153,109.53/211,318.94 = 88,571.16/x
  3. Step 3: Cross multiply
    153,109.53x = 211,318.94 × 88,571.16
  4. Step 4: Simplify right side
    153,109.53x = 18,716,763,867.20
  5. Step 5: Solve for x
    x = 18,716,763,867.20/153,109.53
  6. Step 6: Final answer
    x = 122,244.28

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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.