Home / 113,145.57-169,718.37-28,905.93

Finding the Fourth Proportional to 113,145.57, 169,718.37 and 28,905.93

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Solution

The fourth proportional to 113,145.57, 169,718.37 and 28,905.93 is: 43,358.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,145.57 : 169,718.37 = 28,905.93 : x
  2. Step 2: Convert to fraction form
    113,145.57/169,718.37 = 28,905.93/x
  3. Step 3: Cross multiply
    113,145.57x = 169,718.37 × 28,905.93
  4. Step 4: Simplify right side
    113,145.57x = 4,905,867,322.93
  5. Step 5: Solve for x
    x = 4,905,867,322.93/113,145.57
  6. Step 6: Final answer
    x = 43,358.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.