Home / 153,208.02-211,439.82-85,237.80

Finding the Fourth Proportional to 153,208.02, 211,439.82 and 85,237.80

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Solution

The fourth proportional to 153,208.02, 211,439.82 and 85,237.80 is: 117,635.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,208.02 : 211,439.82 = 85,237.80 : x
  2. Step 2: Convert to fraction form
    153,208.02/211,439.82 = 85,237.80/x
  3. Step 3: Cross multiply
    153,208.02x = 211,439.82 × 85,237.80
  4. Step 4: Simplify right side
    153,208.02x = 18,022,665,089.20
  5. Step 5: Solve for x
    x = 18,022,665,089.20/153,208.02
  6. Step 6: Final answer
    x = 117,635.26

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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.