Home / 153,204.51-211,434.99-85,234.29

Finding the Fourth Proportional to 153,204.51, 211,434.99 and 85,234.29

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Solution

The fourth proportional to 153,204.51, 211,434.99 and 85,234.29 is: 117,630.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,204.51 : 211,434.99 = 85,234.29 : x
  2. Step 2: Convert to fraction form
    153,204.51/211,434.99 = 85,234.29/x
  3. Step 3: Cross multiply
    153,204.51x = 211,434.99 × 85,234.29
  4. Step 4: Simplify right side
    153,204.51x = 18,021,510,196.63
  5. Step 5: Solve for x
    x = 18,021,510,196.63/153,204.51
  6. Step 6: Final answer
    x = 117,630.42

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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.