Home / 103,259.02-154,890.24-28,378.71

Finding the Fourth Proportional to 103,259.02, 154,890.24 and 28,378.71

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Solution

The fourth proportional to 103,259.02, 154,890.24 and 28,378.71 is: 42,568.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,259.02 : 154,890.24 = 28,378.71 : x
  2. Step 2: Convert to fraction form
    103,259.02/154,890.24 = 28,378.71/x
  3. Step 3: Cross multiply
    103,259.02x = 154,890.24 × 28,378.71
  4. Step 4: Simplify right side
    103,259.02x = 4,395,584,428.34
  5. Step 5: Solve for x
    x = 4,395,584,428.34/103,259.02
  6. Step 6: Final answer
    x = 42,568.53

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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.