Home / 147,868.64-204,318.96-128,972.96

Finding the Fourth Proportional to 147,868.64, 204,318.96 and 128,972.96

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Solution

The fourth proportional to 147,868.64, 204,318.96 and 128,972.96 is: 178,209.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,868.64 : 204,318.96 = 128,972.96 : x
  2. Step 2: Convert to fraction form
    147,868.64/204,318.96 = 128,972.96/x
  3. Step 3: Cross multiply
    147,868.64x = 204,318.96 × 128,972.96
  4. Step 4: Simplify right side
    147,868.64x = 26,351,621,055.32
  5. Step 5: Solve for x
    x = 26,351,621,055.32/147,868.64
  6. Step 6: Final answer
    x = 178,209.67

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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.