Home / 140,671.49-194,129.06-86,955.12

Finding the Fourth Proportional to 140,671.49, 194,129.06 and 86,955.12

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Solution

The fourth proportional to 140,671.49, 194,129.06 and 86,955.12 is: 119,999.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,671.49 : 194,129.06 = 86,955.12 : x
  2. Step 2: Convert to fraction form
    140,671.49/194,129.06 = 86,955.12/x
  3. Step 3: Cross multiply
    140,671.49x = 194,129.06 × 86,955.12
  4. Step 4: Simplify right side
    140,671.49x = 16,880,515,273.01
  5. Step 5: Solve for x
    x = 16,880,515,273.01/140,671.49
  6. Step 6: Final answer
    x = 119,999.55

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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.