Home / 165,688.40-228,491.72-111,363.28

Finding the Fourth Proportional to 165,688.40, 228,491.72 and 111,363.28

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Solution

The fourth proportional to 165,688.40, 228,491.72 and 111,363.28 is: 153,574.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,688.40 : 228,491.72 = 111,363.28 : x
  2. Step 2: Convert to fraction form
    165,688.40/228,491.72 = 111,363.28/x
  3. Step 3: Cross multiply
    165,688.40x = 228,491.72 × 111,363.28
  4. Step 4: Simplify right side
    165,688.40x = 25,445,587,392.04
  5. Step 5: Solve for x
    x = 25,445,587,392.04/165,688.40
  6. Step 6: Final answer
    x = 153,574.95

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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.