Home / 143,029.49-197,416.98-97,725.78

Finding the Fourth Proportional to 143,029.49, 197,416.98 and 97,725.78

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Solution

The fourth proportional to 143,029.49, 197,416.98 and 97,725.78 is: 134,886.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,029.49 : 197,416.98 = 97,725.78 : x
  2. Step 2: Convert to fraction form
    143,029.49/197,416.98 = 97,725.78/x
  3. Step 3: Cross multiply
    143,029.49x = 197,416.98 × 97,725.78
  4. Step 4: Simplify right side
    143,029.49x = 19,292,728,355.74
  5. Step 5: Solve for x
    x = 19,292,728,355.74/143,029.49
  6. Step 6: Final answer
    x = 134,886.37

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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.