Home / 140,040.40-193,248.72-79,603.12

Finding the Fourth Proportional to 140,040.40, 193,248.72 and 79,603.12

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Solution

The fourth proportional to 140,040.40, 193,248.72 and 79,603.12 is: 109,848.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,040.40 : 193,248.72 = 79,603.12 : x
  2. Step 2: Convert to fraction form
    140,040.40/193,248.72 = 79,603.12/x
  3. Step 3: Cross multiply
    140,040.40x = 193,248.72 × 79,603.12
  4. Step 4: Simplify right side
    140,040.40x = 15,383,201,048.01
  5. Step 5: Solve for x
    x = 15,383,201,048.01/140,040.40
  6. Step 6: Final answer
    x = 109,848.31

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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.