Home / 153,095.67-211,271.09-85,111.56

Finding the Fourth Proportional to 153,095.67, 211,271.09 and 85,111.56

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Solution

The fourth proportional to 153,095.67, 211,271.09 and 85,111.56 is: 117,453.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,095.67 : 211,271.09 = 85,111.56 : x
  2. Step 2: Convert to fraction form
    153,095.67/211,271.09 = 85,111.56/x
  3. Step 3: Cross multiply
    153,095.67x = 211,271.09 × 85,111.56
  4. Step 4: Simplify right side
    153,095.67x = 17,981,611,627.24
  5. Step 5: Solve for x
    x = 17,981,611,627.24/153,095.67
  6. Step 6: Final answer
    x = 117,453.43

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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.