Home / 103,650.77-155,487.27-28,771.23

Finding the Fourth Proportional to 103,650.77, 155,487.27 and 28,771.23

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Solution

The fourth proportional to 103,650.77, 155,487.27 and 28,771.23 is: 43,159.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,650.77 : 155,487.27 = 28,771.23 : x
  2. Step 2: Convert to fraction form
    103,650.77/155,487.27 = 28,771.23/x
  3. Step 3: Cross multiply
    103,650.77x = 155,487.27 × 28,771.23
  4. Step 4: Simplify right side
    103,650.77x = 4,473,559,935.31
  5. Step 5: Solve for x
    x = 4,473,559,935.31/103,650.77
  6. Step 6: Final answer
    x = 43,159.93

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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.