Home / 103,570.06-155,247.36-70,292.84

Finding the Fourth Proportional to 103,570.06, 155,247.36 and 70,292.84

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Solution

The fourth proportional to 103,570.06, 155,247.36 and 70,292.84 is: 105,366.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,570.06 : 155,247.36 = 70,292.84 : x
  2. Step 2: Convert to fraction form
    103,570.06/155,247.36 = 70,292.84/x
  3. Step 3: Cross multiply
    103,570.06x = 155,247.36 × 70,292.84
  4. Step 4: Simplify right side
    103,570.06x = 10,912,777,836.90
  5. Step 5: Solve for x
    x = 10,912,777,836.90/103,570.06
  6. Step 6: Final answer
    x = 105,366.14

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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.