Home / 103,434.23-155,148.26-28,558.95

Finding the Fourth Proportional to 103,434.23, 155,148.26 and 28,558.95

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Solution

The fourth proportional to 103,434.23, 155,148.26 and 28,558.95 is: 42,837.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,434.23 : 155,148.26 = 28,558.95 : x
  2. Step 2: Convert to fraction form
    103,434.23/155,148.26 = 28,558.95/x
  3. Step 3: Cross multiply
    103,434.23x = 155,148.26 × 28,558.95
  4. Step 4: Simplify right side
    103,434.23x = 4,430,871,399.93
  5. Step 5: Solve for x
    x = 4,430,871,399.93/103,434.23
  6. Step 6: Final answer
    x = 42,837.57

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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.