Home / 103,503.03-155,254.20-28,622.98

Finding the Fourth Proportional to 103,503.03, 155,254.20 and 28,622.98

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Solution

The fourth proportional to 103,503.03, 155,254.20 and 28,622.98 is: 42,934.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,503.03 : 155,254.20 = 28,622.98 : x
  2. Step 2: Convert to fraction form
    103,503.03/155,254.20 = 28,622.98/x
  3. Step 3: Cross multiply
    103,503.03x = 155,254.20 × 28,622.98
  4. Step 4: Simplify right side
    103,503.03x = 4,443,837,861.52
  5. Step 5: Solve for x
    x = 4,443,837,861.52/103,503.03
  6. Step 6: Final answer
    x = 42,934.37

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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.