Home / 153,511.03-211,860.73-85,539.07

Finding the Fourth Proportional to 153,511.03, 211,860.73 and 85,539.07

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Solution

The fourth proportional to 153,511.03, 211,860.73 and 85,539.07 is: 118,052.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,511.03 : 211,860.73 = 85,539.07 : x
  2. Step 2: Convert to fraction form
    153,511.03/211,860.73 = 85,539.07/x
  3. Step 3: Cross multiply
    153,511.03x = 211,860.73 × 85,539.07
  4. Step 4: Simplify right side
    153,511.03x = 18,122,369,813.72
  5. Step 5: Solve for x
    x = 18,122,369,813.72/153,511.03
  6. Step 6: Final answer
    x = 118,052.56

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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.