Home / 103,426.77-155,149.07-28,546.93

Finding the Fourth Proportional to 103,426.77, 155,149.07 and 28,546.93

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Solution

The fourth proportional to 103,426.77, 155,149.07 and 28,546.93 is: 42,822.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,426.77 : 155,149.07 = 28,546.93 : x
  2. Step 2: Convert to fraction form
    103,426.77/155,149.07 = 28,546.93/x
  3. Step 3: Cross multiply
    103,426.77x = 155,149.07 × 28,546.93
  4. Step 4: Simplify right side
    103,426.77x = 4,429,029,852.63
  5. Step 5: Solve for x
    x = 4,429,029,852.63/103,426.77
  6. Step 6: Final answer
    x = 42,822.86

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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.