Home / 153,617.16-211,992.56-85,638.44

Finding the Fourth Proportional to 153,617.16, 211,992.56 and 85,638.44

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Solution

The fourth proportional to 153,617.16, 211,992.56 and 85,638.44 is: 118,181.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,617.16 : 211,992.56 = 85,638.44 : x
  2. Step 2: Convert to fraction form
    153,617.16/211,992.56 = 85,638.44/x
  3. Step 3: Cross multiply
    153,617.16x = 211,992.56 × 85,638.44
  4. Step 4: Simplify right side
    153,617.16x = 18,154,712,130.01
  5. Step 5: Solve for x
    x = 18,154,712,130.01/153,617.16
  6. Step 6: Final answer
    x = 118,181.54

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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.