Home / 153,013.28-211,144.88-85,025.94

Finding the Fourth Proportional to 153,013.28, 211,144.88 and 85,025.94

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Solution

The fourth proportional to 153,013.28, 211,144.88 and 85,025.94 is: 117,328.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,013.28 : 211,144.88 = 85,025.94 : x
  2. Step 2: Convert to fraction form
    153,013.28/211,144.88 = 85,025.94/x
  3. Step 3: Cross multiply
    153,013.28x = 211,144.88 × 85,025.94
  4. Step 4: Simplify right side
    153,013.28x = 17,952,792,902.55
  5. Step 5: Solve for x
    x = 17,952,792,902.55/153,013.28
  6. Step 6: Final answer
    x = 117,328.33

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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.