Home / 120,651.06-166,518.45-66,953.32

Finding the Fourth Proportional to 120,651.06, 166,518.45 and 66,953.32

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Solution

The fourth proportional to 120,651.06, 166,518.45 and 66,953.32 is: 92,406.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,651.06 : 166,518.45 = 66,953.32 : x
  2. Step 2: Convert to fraction form
    120,651.06/166,518.45 = 66,953.32/x
  3. Step 3: Cross multiply
    120,651.06x = 166,518.45 × 66,953.32
  4. Step 4: Simplify right side
    120,651.06x = 11,148,963,068.75
  5. Step 5: Solve for x
    x = 11,148,963,068.75/120,651.06
  6. Step 6: Final answer
    x = 92,406.67

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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.