Home / 153,192.40-211,403.82-85,208.92

Finding the Fourth Proportional to 153,192.40, 211,403.82 and 85,208.92

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Solution

The fourth proportional to 153,192.40, 211,403.82 and 85,208.92 is: 117,587.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,192.40 : 211,403.82 = 85,208.92 : x
  2. Step 2: Convert to fraction form
    153,192.40/211,403.82 = 85,208.92/x
  3. Step 3: Cross multiply
    153,192.40x = 211,403.82 × 85,208.92
  4. Step 4: Simplify right side
    153,192.40x = 18,013,491,186.07
  5. Step 5: Solve for x
    x = 18,013,491,186.07/153,192.40
  6. Step 6: Final answer
    x = 117,587.37

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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.