Home / 153,000.18-211,136.06-85,015.41

Finding the Fourth Proportional to 153,000.18, 211,136.06 and 85,015.41

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Solution

The fourth proportional to 153,000.18, 211,136.06 and 85,015.41 is: 117,318.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,000.18 : 211,136.06 = 85,015.41 : x
  2. Step 2: Convert to fraction form
    153,000.18/211,136.06 = 85,015.41/x
  3. Step 3: Cross multiply
    153,000.18x = 211,136.06 × 85,015.41
  4. Step 4: Simplify right side
    153,000.18x = 17,949,818,706.68
  5. Step 5: Solve for x
    x = 17,949,818,706.68/153,000.18
  6. Step 6: Final answer
    x = 117,318.94

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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.