Home / 101,923.57-140,721.14-66,215.35

Finding the Fourth Proportional to 101,923.57, 140,721.14 and 66,215.35

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Solution

The fourth proportional to 101,923.57, 140,721.14 and 66,215.35 is: 91,420.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,923.57 : 140,721.14 = 66,215.35 : x
  2. Step 2: Convert to fraction form
    101,923.57/140,721.14 = 66,215.35/x
  3. Step 3: Cross multiply
    101,923.57x = 140,721.14 × 66,215.35
  4. Step 4: Simplify right side
    101,923.57x = 9,317,899,537.50
  5. Step 5: Solve for x
    x = 9,317,899,537.50/101,923.57
  6. Step 6: Final answer
    x = 91,420.46

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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.