Home / 118,224.69-163,146.87-64,509.72

Finding the Fourth Proportional to 118,224.69, 163,146.87 and 64,509.72

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Solution

The fourth proportional to 118,224.69, 163,146.87 and 64,509.72 is: 89,021.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,224.69 : 163,146.87 = 64,509.72 : x
  2. Step 2: Convert to fraction form
    118,224.69/163,146.87 = 64,509.72/x
  3. Step 3: Cross multiply
    118,224.69x = 163,146.87 × 64,509.72
  4. Step 4: Simplify right side
    118,224.69x = 10,524,558,902.58
  5. Step 5: Solve for x
    x = 10,524,558,902.58/118,224.69
  6. Step 6: Final answer
    x = 89,021.67

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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.