Home / 231,511.50-319,526.82-136,018.17

Finding the Fourth Proportional to 231,511.50, 319,526.82 and 136,018.17

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Solution

The fourth proportional to 231,511.50, 319,526.82 and 136,018.17 is: 187,729.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,511.50 : 319,526.82 = 136,018.17 : x
  2. Step 2: Convert to fraction form
    231,511.50/319,526.82 = 136,018.17/x
  3. Step 3: Cross multiply
    231,511.50x = 319,526.82 × 136,018.17
  4. Step 4: Simplify right side
    231,511.50x = 43,461,453,322.32
  5. Step 5: Solve for x
    x = 43,461,453,322.32/231,511.50
  6. Step 6: Final answer
    x = 187,729.13

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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.