Home / 155,539.45-233,208.73-85,399.93

Finding the Fourth Proportional to 155,539.45, 233,208.73 and 85,399.93

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Solution

The fourth proportional to 155,539.45, 233,208.73 and 85,399.93 is: 128,044.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,539.45 : 233,208.73 = 85,399.93 : x
  2. Step 2: Convert to fraction form
    155,539.45/233,208.73 = 85,399.93/x
  3. Step 3: Cross multiply
    155,539.45x = 233,208.73 × 85,399.93
  4. Step 4: Simplify right side
    155,539.45x = 19,916,009,217.39
  5. Step 5: Solve for x
    x = 19,916,009,217.39/155,539.45
  6. Step 6: Final answer
    x = 128,044.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.