Home / 102,815.06-154,222.58-57,839.40

Finding the Fourth Proportional to 102,815.06, 154,222.58 and 57,839.40

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Solution

The fourth proportional to 102,815.06, 154,222.58 and 57,839.40 is: 86,759.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,815.06 : 154,222.58 = 57,839.40 : x
  2. Step 2: Convert to fraction form
    102,815.06/154,222.58 = 57,839.40/x
  3. Step 3: Cross multiply
    102,815.06x = 154,222.58 × 57,839.40
  4. Step 4: Simplify right side
    102,815.06x = 8,920,141,204.46
  5. Step 5: Solve for x
    x = 8,920,141,204.46/102,815.06
  6. Step 6: Final answer
    x = 86,759.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.