Home / 153,112.22-211,301.90-85,136.18

Finding the Fourth Proportional to 153,112.22, 211,301.90 and 85,136.18

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Solution

The fourth proportional to 153,112.22, 211,301.90 and 85,136.18 is: 117,491.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,112.22 : 211,301.90 = 85,136.18 : x
  2. Step 2: Convert to fraction form
    153,112.22/211,301.90 = 85,136.18/x
  3. Step 3: Cross multiply
    153,112.22x = 211,301.90 × 85,136.18
  4. Step 4: Simplify right side
    153,112.22x = 17,989,436,167.06
  5. Step 5: Solve for x
    x = 17,989,436,167.06/153,112.22
  6. Step 6: Final answer
    x = 117,491.84

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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.