Home / 154,794.45-213,603.88-85,886.13

Finding the Fourth Proportional to 154,794.45, 213,603.88 and 85,886.13

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Solution

The fourth proportional to 154,794.45, 213,603.88 and 85,886.13 is: 118,515.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,794.45 : 213,603.88 = 85,886.13 : x
  2. Step 2: Convert to fraction form
    154,794.45/213,603.88 = 85,886.13/x
  3. Step 3: Cross multiply
    154,794.45x = 213,603.88 × 85,886.13
  4. Step 4: Simplify right side
    154,794.45x = 18,345,610,606.18
  5. Step 5: Solve for x
    x = 18,345,610,606.18/154,794.45
  6. Step 6: Final answer
    x = 118,515.95

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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.