Home / 117,857.19-162,651.60-66,878.67

Finding the Fourth Proportional to 117,857.19, 162,651.60 and 66,878.67

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Solution

The fourth proportional to 117,857.19, 162,651.60 and 66,878.67 is: 92,297.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,857.19 : 162,651.60 = 66,878.67 : x
  2. Step 2: Convert to fraction form
    117,857.19/162,651.60 = 66,878.67/x
  3. Step 3: Cross multiply
    117,857.19x = 162,651.60 × 66,878.67
  4. Step 4: Simplify right side
    117,857.19x = 10,877,922,681.37
  5. Step 5: Solve for x
    x = 10,877,922,681.37/117,857.19
  6. Step 6: Final answer
    x = 92,297.49

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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.