Home / 103,687.14-155,533.55-28,807.50

Finding the Fourth Proportional to 103,687.14, 155,533.55 and 28,807.50

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Solution

The fourth proportional to 103,687.14, 155,533.55 and 28,807.50 is: 43,212.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,687.14 : 155,533.55 = 28,807.50 : x
  2. Step 2: Convert to fraction form
    103,687.14/155,533.55 = 28,807.50/x
  3. Step 3: Cross multiply
    103,687.14x = 155,533.55 × 28,807.50
  4. Step 4: Simplify right side
    103,687.14x = 4,480,532,597.59
  5. Step 5: Solve for x
    x = 4,480,532,597.59/103,687.14
  6. Step 6: Final answer
    x = 43,212.04

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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.