Home / 117,905.63-162,709.49-64,191.02

Finding the Fourth Proportional to 117,905.63, 162,709.49 and 64,191.02

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Solution

The fourth proportional to 117,905.63, 162,709.49 and 64,191.02 is: 88,583.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,905.63 : 162,709.49 = 64,191.02 : x
  2. Step 2: Convert to fraction form
    117,905.63/162,709.49 = 64,191.02/x
  3. Step 3: Cross multiply
    117,905.63x = 162,709.49 × 64,191.02
  4. Step 4: Simplify right side
    117,905.63x = 10,444,487,473.71
  5. Step 5: Solve for x
    x = 10,444,487,473.71/117,905.63
  6. Step 6: Final answer
    x = 88,583.45

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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.