Home / 154,099.47-212,656.65-86,116.44

Finding the Fourth Proportional to 154,099.47, 212,656.65 and 86,116.44

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Solution

The fourth proportional to 154,099.47, 212,656.65 and 86,116.44 is: 118,840.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,099.47 : 212,656.65 = 86,116.44 : x
  2. Step 2: Convert to fraction form
    154,099.47/212,656.65 = 86,116.44/x
  3. Step 3: Cross multiply
    154,099.47x = 212,656.65 × 86,116.44
  4. Step 4: Simplify right side
    154,099.47x = 18,313,233,640.33
  5. Step 5: Solve for x
    x = 18,313,233,640.33/154,099.47
  6. Step 6: Final answer
    x = 118,840.34

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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.