Home / 154,257.01-212,885.49-86,280.28

Finding the Fourth Proportional to 154,257.01, 212,885.49 and 86,280.28

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Solution

The fourth proportional to 154,257.01, 212,885.49 and 86,280.28 is: 119,072.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,257.01 : 212,885.49 = 86,280.28 : x
  2. Step 2: Convert to fraction form
    154,257.01/212,885.49 = 86,280.28/x
  3. Step 3: Cross multiply
    154,257.01x = 212,885.49 × 86,280.28
  4. Step 4: Simplify right side
    154,257.01x = 18,367,819,685.14
  5. Step 5: Solve for x
    x = 18,367,819,685.14/154,257.01
  6. Step 6: Final answer
    x = 119,072.84

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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.