Home / 103,574.20-155,361.30-102,537.40

Finding the Fourth Proportional to 103,574.20, 155,361.30 and 102,537.40

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Solution

The fourth proportional to 103,574.20, 155,361.30 and 102,537.40 is: 153,806.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,574.20 : 155,361.30 = 102,537.40 : x
  2. Step 2: Convert to fraction form
    103,574.20/155,361.30 = 102,537.40/x
  3. Step 3: Cross multiply
    103,574.20x = 155,361.30 × 102,537.40
  4. Step 4: Simplify right side
    103,574.20x = 15,930,343,762.62
  5. Step 5: Solve for x
    x = 15,930,343,762.62/103,574.20
  6. Step 6: Final answer
    x = 153,806.10

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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.