Home / 109,164.28-163,746.41-30,278.51

Finding the Fourth Proportional to 109,164.28, 163,746.41 and 30,278.51

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Solution

The fourth proportional to 109,164.28, 163,746.41 and 30,278.51 is: 45,417.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,164.28 : 163,746.41 = 30,278.51 : x
  2. Step 2: Convert to fraction form
    109,164.28/163,746.41 = 30,278.51/x
  3. Step 3: Cross multiply
    109,164.28x = 163,746.41 × 30,278.51
  4. Step 4: Simplify right side
    109,164.28x = 4,957,997,126.89
  5. Step 5: Solve for x
    x = 4,957,997,126.89/109,164.28
  6. Step 6: Final answer
    x = 45,417.76

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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.