Home / 153,165.36-211,336.97-89,490.86

Finding the Fourth Proportional to 153,165.36, 211,336.97 and 89,490.86

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Solution

The fourth proportional to 153,165.36, 211,336.97 and 89,490.86 is: 123,479.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,165.36 : 211,336.97 = 89,490.86 : x
  2. Step 2: Convert to fraction form
    153,165.36/211,336.97 = 89,490.86/x
  3. Step 3: Cross multiply
    153,165.36x = 211,336.97 × 89,490.86
  4. Step 4: Simplify right side
    153,165.36x = 18,912,725,690.96
  5. Step 5: Solve for x
    x = 18,912,725,690.96/153,165.36
  6. Step 6: Final answer
    x = 123,479.13

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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.