Home / 103,615.62-155,423.45-28,735.77

Finding the Fourth Proportional to 103,615.62, 155,423.45 and 28,735.77

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Solution

The fourth proportional to 103,615.62, 155,423.45 and 28,735.77 is: 43,103.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,615.62 : 155,423.45 = 28,735.77 : x
  2. Step 2: Convert to fraction form
    103,615.62/155,423.45 = 28,735.77/x
  3. Step 3: Cross multiply
    103,615.62x = 155,423.45 × 28,735.77
  4. Step 4: Simplify right side
    103,615.62x = 4,466,212,368.13
  5. Step 5: Solve for x
    x = 4,466,212,368.13/103,615.62
  6. Step 6: Final answer
    x = 43,103.66

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1.5x scale

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.