Home / 101,932.21-140,661.75-56,613.07

Finding the Fourth Proportional to 101,932.21, 140,661.75 and 56,613.07

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Solution

The fourth proportional to 101,932.21, 140,661.75 and 56,613.07 is: 78,123.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,932.21 : 140,661.75 = 56,613.07 : x
  2. Step 2: Convert to fraction form
    101,932.21/140,661.75 = 56,613.07/x
  3. Step 3: Cross multiply
    101,932.21x = 140,661.75 × 56,613.07
  4. Step 4: Simplify right side
    101,932.21x = 7,963,293,499.07
  5. Step 5: Solve for x
    x = 7,963,293,499.07/101,932.21
  6. Step 6: Final answer
    x = 78,123.43

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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.