Home / 157,378.56-217,175.60-89,395.32

Finding the Fourth Proportional to 157,378.56, 217,175.60 and 89,395.32

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Solution

The fourth proportional to 157,378.56, 217,175.60 and 89,395.32 is: 123,361.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,378.56 : 217,175.60 = 89,395.32 : x
  2. Step 2: Convert to fraction form
    157,378.56/217,175.60 = 89,395.32/x
  3. Step 3: Cross multiply
    157,378.56x = 217,175.60 × 89,395.32
  4. Step 4: Simplify right side
    157,378.56x = 19,414,482,258.19
  5. Step 5: Solve for x
    x = 19,414,482,258.19/157,378.56
  6. Step 6: Final answer
    x = 123,361.67

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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.