Home / 117,614.55-162,272.32-66,619.18

Finding the Fourth Proportional to 117,614.55, 162,272.32 and 66,619.18

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Solution

The fourth proportional to 117,614.55, 162,272.32 and 66,619.18 is: 91,914.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,614.55 : 162,272.32 = 66,619.18 : x
  2. Step 2: Convert to fraction form
    117,614.55/162,272.32 = 66,619.18/x
  3. Step 3: Cross multiply
    117,614.55x = 162,272.32 × 66,619.18
  4. Step 4: Simplify right side
    117,614.55x = 10,810,448,895.10
  5. Step 5: Solve for x
    x = 10,810,448,895.10/117,614.55
  6. Step 6: Final answer
    x = 91,914.21

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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.