Home / 154,040.57-212,554.95-86,049.14

Finding the Fourth Proportional to 154,040.57, 212,554.95 and 86,049.14

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Solution

The fourth proportional to 154,040.57, 212,554.95 and 86,049.14 is: 118,736.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,040.57 : 212,554.95 = 86,049.14 : x
  2. Step 2: Convert to fraction form
    154,040.57/212,554.95 = 86,049.14/x
  3. Step 3: Cross multiply
    154,040.57x = 212,554.95 × 86,049.14
  4. Step 4: Simplify right side
    154,040.57x = 18,290,169,748.81
  5. Step 5: Solve for x
    x = 18,290,169,748.81/154,040.57
  6. Step 6: Final answer
    x = 118,736.06

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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.