Home / 101,749.40-140,252.34-80,204.21

Finding the Fourth Proportional to 101,749.40, 140,252.34 and 80,204.21

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Solution

The fourth proportional to 101,749.40, 140,252.34 and 80,204.21 is: 110,554.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,749.40 : 140,252.34 = 80,204.21 : x
  2. Step 2: Convert to fraction form
    101,749.40/140,252.34 = 80,204.21/x
  3. Step 3: Cross multiply
    101,749.40x = 140,252.34 × 80,204.21
  4. Step 4: Simplify right side
    101,749.40x = 11,248,828,130.35
  5. Step 5: Solve for x
    x = 11,248,828,130.35/101,749.40
  6. Step 6: Final answer
    x = 110,554.25

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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.