Home / 201,966.15-278,715.24-111,325.67

Finding the Fourth Proportional to 201,966.15, 278,715.24 and 111,325.67

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Solution

The fourth proportional to 201,966.15, 278,715.24 and 111,325.67 is: 153,630.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,966.15 : 278,715.24 = 111,325.67 : x
  2. Step 2: Convert to fraction form
    201,966.15/278,715.24 = 111,325.67/x
  3. Step 3: Cross multiply
    201,966.15x = 278,715.24 × 111,325.67
  4. Step 4: Simplify right side
    201,966.15x = 31,028,159,438.63
  5. Step 5: Solve for x
    x = 31,028,159,438.63/201,966.15
  6. Step 6: Final answer
    x = 153,630.49

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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.