Home / 186,021.12-256,708.56-101,138.40

Finding the Fourth Proportional to 186,021.12, 256,708.56 and 101,138.40

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Solution

The fourth proportional to 186,021.12, 256,708.56 and 101,138.40 is: 139,570.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,021.12 : 256,708.56 = 101,138.40 : x
  2. Step 2: Convert to fraction form
    186,021.12/256,708.56 = 101,138.40/x
  3. Step 3: Cross multiply
    186,021.12x = 256,708.56 × 101,138.40
  4. Step 4: Simplify right side
    186,021.12x = 25,963,093,024.70
  5. Step 5: Solve for x
    x = 25,963,093,024.70/186,021.12
  6. Step 6: Final answer
    x = 139,570.67

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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.