Home / 153,161.11-211,331.30-89,486.60

Finding the Fourth Proportional to 153,161.11, 211,331.30 and 89,486.60

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Solution

The fourth proportional to 153,161.11, 211,331.30 and 89,486.60 is: 123,473.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,161.11 : 211,331.30 = 89,486.60 : x
  2. Step 2: Convert to fraction form
    153,161.11/211,331.30 = 89,486.60/x
  3. Step 3: Cross multiply
    153,161.11x = 211,331.30 × 89,486.60
  4. Step 4: Simplify right side
    153,161.11x = 18,911,319,063.15
  5. Step 5: Solve for x
    x = 18,911,319,063.15/153,161.11
  6. Step 6: Final answer
    x = 123,473.38

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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.