Home / 109,161.06-163,741.58-30,275.28

Finding the Fourth Proportional to 109,161.06, 163,741.58 and 30,275.28

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Solution

The fourth proportional to 109,161.06, 163,741.58 and 30,275.28 is: 45,412.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,161.06 : 163,741.58 = 30,275.28 : x
  2. Step 2: Convert to fraction form
    109,161.06/163,741.58 = 30,275.28/x
  3. Step 3: Cross multiply
    109,161.06x = 163,741.58 × 30,275.28
  4. Step 4: Simplify right side
    109,161.06x = 4,957,322,030.77
  5. Step 5: Solve for x
    x = 4,957,322,030.77/109,161.06
  6. Step 6: Final answer
    x = 45,412.92

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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.