Home / 101,688.11-140,339.49-59,243.91

Finding the Fourth Proportional to 101,688.11, 140,339.49 and 59,243.91

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Solution

The fourth proportional to 101,688.11, 140,339.49 and 59,243.91 is: 81,762.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,688.11 : 140,339.49 = 59,243.91 : x
  2. Step 2: Convert to fraction form
    101,688.11/140,339.49 = 59,243.91/x
  3. Step 3: Cross multiply
    101,688.11x = 140,339.49 × 59,243.91
  4. Step 4: Simplify right side
    101,688.11x = 8,314,259,366.57
  5. Step 5: Solve for x
    x = 8,314,259,366.57/101,688.11
  6. Step 6: Final answer
    x = 81,762.36

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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.