Home / 153,173.15-211,347.66-89,498.64

Finding the Fourth Proportional to 153,173.15, 211,347.66 and 89,498.64

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Solution

The fourth proportional to 153,173.15, 211,347.66 and 89,498.64 is: 123,489.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,173.15 : 211,347.66 = 89,498.64 : x
  2. Step 2: Convert to fraction form
    153,173.15/211,347.66 = 89,498.64/x
  3. Step 3: Cross multiply
    153,173.15x = 211,347.66 × 89,498.64
  4. Step 4: Simplify right side
    153,173.15x = 18,915,328,137.18
  5. Step 5: Solve for x
    x = 18,915,328,137.18/153,173.15
  6. Step 6: Final answer
    x = 123,489.84

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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.