Home / 152,868.28-210,951.19-84,889.60

Finding the Fourth Proportional to 152,868.28, 210,951.19 and 84,889.60

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Solution

The fourth proportional to 152,868.28, 210,951.19 and 84,889.60 is: 117,143.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,868.28 : 210,951.19 = 84,889.60 : x
  2. Step 2: Convert to fraction form
    152,868.28/210,951.19 = 84,889.60/x
  3. Step 3: Cross multiply
    152,868.28x = 210,951.19 × 84,889.60
  4. Step 4: Simplify right side
    152,868.28x = 17,907,561,981.48
  5. Step 5: Solve for x
    x = 17,907,561,981.48/152,868.28
  6. Step 6: Final answer
    x = 117,143.74

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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.