Home / 103,516.55-155,277.88-28,637.31

Finding the Fourth Proportional to 103,516.55, 155,277.88 and 28,637.31

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Solution

The fourth proportional to 103,516.55, 155,277.88 and 28,637.31 is: 42,956.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,516.55 : 155,277.88 = 28,637.31 : x
  2. Step 2: Convert to fraction form
    103,516.55/155,277.88 = 28,637.31/x
  3. Step 3: Cross multiply
    103,516.55x = 155,277.88 × 28,637.31
  4. Step 4: Simplify right side
    103,516.55x = 4,446,741,296.40
  5. Step 5: Solve for x
    x = 4,446,741,296.40/103,516.55
  6. Step 6: Final answer
    x = 42,956.82

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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.