Home / 117,705.26-162,429.87-66,722.70

Finding the Fourth Proportional to 117,705.26, 162,429.87 and 66,722.70

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Solution

The fourth proportional to 117,705.26, 162,429.87 and 66,722.70 is: 92,075.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,705.26 : 162,429.87 = 66,722.70 : x
  2. Step 2: Convert to fraction form
    117,705.26/162,429.87 = 66,722.70/x
  3. Step 3: Cross multiply
    117,705.26x = 162,429.87 × 66,722.70
  4. Step 4: Simplify right side
    117,705.26x = 10,837,759,487.05
  5. Step 5: Solve for x
    x = 10,837,759,487.05/117,705.26
  6. Step 6: Final answer
    x = 92,075.40

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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.