Home / 103,531.36-155,300.49-28,645.24

Finding the Fourth Proportional to 103,531.36, 155,300.49 and 28,645.24

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Solution

The fourth proportional to 103,531.36, 155,300.49 and 28,645.24 is: 42,968.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,531.36 : 155,300.49 = 28,645.24 : x
  2. Step 2: Convert to fraction form
    103,531.36/155,300.49 = 28,645.24/x
  3. Step 3: Cross multiply
    103,531.36x = 155,300.49 × 28,645.24
  4. Step 4: Simplify right side
    103,531.36x = 4,448,619,808.17
  5. Step 5: Solve for x
    x = 4,448,619,808.17/103,531.36
  6. Step 6: Final answer
    x = 42,968.81

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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.