Home / 101,682.16-140,321.64-56,359.36

Finding the Fourth Proportional to 101,682.16, 140,321.64 and 56,359.36

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Solution

The fourth proportional to 101,682.16, 140,321.64 and 56,359.36 is: 77,776.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,682.16 : 140,321.64 = 56,359.36 : x
  2. Step 2: Convert to fraction form
    101,682.16/140,321.64 = 56,359.36/x
  3. Step 3: Cross multiply
    101,682.16x = 140,321.64 × 56,359.36
  4. Step 4: Simplify right side
    101,682.16x = 7,908,437,824.55
  5. Step 5: Solve for x
    x = 7,908,437,824.55/101,682.16
  6. Step 6: Final answer
    x = 77,776.06

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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.