Home / 189,942.99-262,173.15-118,280.67

Finding the Fourth Proportional to 189,942.99, 262,173.15 and 118,280.67

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Solution

The fourth proportional to 189,942.99, 262,173.15 and 118,280.67 is: 163,259.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,942.99 : 262,173.15 = 118,280.67 : x
  2. Step 2: Convert to fraction form
    189,942.99/262,173.15 = 118,280.67/x
  3. Step 3: Cross multiply
    189,942.99x = 262,173.15 × 118,280.67
  4. Step 4: Simplify right side
    189,942.99x = 31,010,015,838.01
  5. Step 5: Solve for x
    x = 31,010,015,838.01/189,942.99
  6. Step 6: Final answer
    x = 163,259.60

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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.