Home / 154,825.46-213,648.16-85,918.62

Finding the Fourth Proportional to 154,825.46, 213,648.16 and 85,918.62

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Solution

The fourth proportional to 154,825.46, 213,648.16 and 85,918.62 is: 118,561.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,825.46 : 213,648.16 = 85,918.62 : x
  2. Step 2: Convert to fraction form
    154,825.46/213,648.16 = 85,918.62/x
  3. Step 3: Cross multiply
    154,825.46x = 213,648.16 × 85,918.62
  4. Step 4: Simplify right side
    154,825.46x = 18,356,354,643.15
  5. Step 5: Solve for x
    x = 18,356,354,643.15/154,825.46
  6. Step 6: Final answer
    x = 118,561.61

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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.