Home / 153,576.12-211,952.26-85,599.30

Finding the Fourth Proportional to 153,576.12, 211,952.26 and 85,599.30

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Solution

The fourth proportional to 153,576.12, 211,952.26 and 85,599.30 is: 118,136.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,576.12 : 211,952.26 = 85,599.30 : x
  2. Step 2: Convert to fraction form
    153,576.12/211,952.26 = 85,599.30/x
  3. Step 3: Cross multiply
    153,576.12x = 211,952.26 × 85,599.30
  4. Step 4: Simplify right side
    153,576.12x = 18,142,965,089.42
  5. Step 5: Solve for x
    x = 18,142,965,089.42/153,576.12
  6. Step 6: Final answer
    x = 118,136.63

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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.