Home / 103,289.40-154,934.10-102,706.20

Finding the Fourth Proportional to 103,289.40, 154,934.10 and 102,706.20

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Solution

The fourth proportional to 103,289.40, 154,934.10 and 102,706.20 is: 154,059.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,289.40 : 154,934.10 = 102,706.20 : x
  2. Step 2: Convert to fraction form
    103,289.40/154,934.10 = 102,706.20/x
  3. Step 3: Cross multiply
    103,289.40x = 154,934.10 × 102,706.20
  4. Step 4: Simplify right side
    103,289.40x = 15,912,692,661.42
  5. Step 5: Solve for x
    x = 15,912,692,661.42/103,289.40
  6. Step 6: Final answer
    x = 154,059.30

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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.