Home / 117,302.44-161,875.36-66,314.40

Finding the Fourth Proportional to 117,302.44, 161,875.36 and 66,314.40

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Solution

The fourth proportional to 117,302.44, 161,875.36 and 66,314.40 is: 91,512.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,302.44 : 161,875.36 = 66,314.40 : x
  2. Step 2: Convert to fraction form
    117,302.44/161,875.36 = 66,314.40/x
  3. Step 3: Cross multiply
    117,302.44x = 161,875.36 × 66,314.40
  4. Step 4: Simplify right side
    117,302.44x = 10,734,667,373.18
  5. Step 5: Solve for x
    x = 10,734,667,373.18/117,302.44
  6. Step 6: Final answer
    x = 91,512.74

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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.