Home / 117,621.63-162,312.56-66,633.32

Finding the Fourth Proportional to 117,621.63, 162,312.56 and 66,633.32

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Solution

The fourth proportional to 117,621.63, 162,312.56 and 66,633.32 is: 91,950.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,621.63 : 162,312.56 = 66,633.32 : x
  2. Step 2: Convert to fraction form
    117,621.63/162,312.56 = 66,633.32/x
  3. Step 3: Cross multiply
    117,621.63x = 162,312.56 × 66,633.32
  4. Step 4: Simplify right side
    117,621.63x = 10,815,424,844.74
  5. Step 5: Solve for x
    x = 10,815,424,844.74/117,621.63
  6. Step 6: Final answer
    x = 91,950.98

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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.