Home / 153,163.10-211,333.86-89,488.60

Finding the Fourth Proportional to 153,163.10, 211,333.86 and 89,488.60

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Solution

The fourth proportional to 153,163.10, 211,333.86 and 89,488.60 is: 123,476.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,163.10 : 211,333.86 = 89,488.60 : x
  2. Step 2: Convert to fraction form
    153,163.10/211,333.86 = 89,488.60/x
  3. Step 3: Cross multiply
    153,163.10x = 211,333.86 × 89,488.60
  4. Step 4: Simplify right side
    153,163.10x = 18,911,970,735.66
  5. Step 5: Solve for x
    x = 18,911,970,735.66/153,163.10
  6. Step 6: Final answer
    x = 123,476.02

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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.