Home / 103,866.71-155,826.29-28,986.80

Finding the Fourth Proportional to 103,866.71, 155,826.29 and 28,986.80

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Solution

The fourth proportional to 103,866.71, 155,826.29 and 28,986.80 is: 43,487.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,866.71 : 155,826.29 = 28,986.80 : x
  2. Step 2: Convert to fraction form
    103,866.71/155,826.29 = 28,986.80/x
  3. Step 3: Cross multiply
    103,866.71x = 155,826.29 × 28,986.80
  4. Step 4: Simplify right side
    103,866.71x = 4,516,905,502.97
  5. Step 5: Solve for x
    x = 4,516,905,502.97/103,866.71
  6. Step 6: Final answer
    x = 43,487.52

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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.