Home / 154,069.74-212,608.47-86,073.21

Finding the Fourth Proportional to 154,069.74, 212,608.47 and 86,073.21

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Solution

The fourth proportional to 154,069.74, 212,608.47 and 86,073.21 is: 118,776.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,069.74 : 212,608.47 = 86,073.21 : x
  2. Step 2: Convert to fraction form
    154,069.74/212,608.47 = 86,073.21/x
  3. Step 3: Cross multiply
    154,069.74x = 212,608.47 × 86,073.21
  4. Step 4: Simplify right side
    154,069.74x = 18,299,893,486.09
  5. Step 5: Solve for x
    x = 18,299,893,486.09/154,069.74
  6. Step 6: Final answer
    x = 118,776.69

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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.