Home / 103,432.36-155,145.44-28,557.08

Finding the Fourth Proportional to 103,432.36, 155,145.44 and 28,557.08

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Solution

The fourth proportional to 103,432.36, 155,145.44 and 28,557.08 is: 42,834.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,432.36 : 155,145.44 = 28,557.08 : x
  2. Step 2: Convert to fraction form
    103,432.36/155,145.44 = 28,557.08/x
  3. Step 3: Cross multiply
    103,432.36x = 155,145.44 × 28,557.08
  4. Step 4: Simplify right side
    103,432.36x = 4,430,500,741.72
  5. Step 5: Solve for x
    x = 4,430,500,741.72/103,432.36
  6. Step 6: Final answer
    x = 42,834.76

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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.