Home / 134,890.28-186,149.24-74,459.82

Finding the Fourth Proportional to 134,890.28, 186,149.24 and 74,459.82

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Solution

The fourth proportional to 134,890.28, 186,149.24 and 74,459.82 is: 102,754.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,890.28 : 186,149.24 = 74,459.82 : x
  2. Step 2: Convert to fraction form
    134,890.28/186,149.24 = 74,459.82/x
  3. Step 3: Cross multiply
    134,890.28x = 186,149.24 × 74,459.82
  4. Step 4: Simplify right side
    134,890.28x = 13,860,638,903.54
  5. Step 5: Solve for x
    x = 13,860,638,903.54/134,890.28
  6. Step 6: Final answer
    x = 102,754.91

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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.