Home / 189,140.61-261,012.46-103,098.02

Finding the Fourth Proportional to 189,140.61, 261,012.46 and 103,098.02

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Solution

The fourth proportional to 189,140.61, 261,012.46 and 103,098.02 is: 142,274.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,140.61 : 261,012.46 = 103,098.02 : x
  2. Step 2: Convert to fraction form
    189,140.61/261,012.46 = 103,098.02/x
  3. Step 3: Cross multiply
    189,140.61x = 261,012.46 × 103,098.02
  4. Step 4: Simplify right side
    189,140.61x = 26,909,867,821.33
  5. Step 5: Solve for x
    x = 26,909,867,821.33/189,140.61
  6. Step 6: Final answer
    x = 142,274.41

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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.