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Finding the Fourth Proportional to 117,395.84, 162,014.29 and 66,408.59

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Solution

The fourth proportional to 117,395.84, 162,014.29 and 66,408.59 is: 91,648.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,395.84 : 162,014.29 = 66,408.59 : x
  2. Step 2: Convert to fraction form
    117,395.84/162,014.29 = 66,408.59/x
  3. Step 3: Cross multiply
    117,395.84x = 162,014.29 × 66,408.59
  4. Step 4: Simplify right side
    117,395.84x = 10,759,140,797.77
  5. Step 5: Solve for x
    x = 10,759,140,797.77/117,395.84
  6. Step 6: Final answer
    x = 91,648.40

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1.5x scale

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.