Home / 103,531.23-155,300.30-28,645.11

Finding the Fourth Proportional to 103,531.23, 155,300.30 and 28,645.11

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Solution

The fourth proportional to 103,531.23, 155,300.30 and 28,645.11 is: 42,968.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,531.23 : 155,300.30 = 28,645.11 : x
  2. Step 2: Convert to fraction form
    103,531.23/155,300.30 = 28,645.11/x
  3. Step 3: Cross multiply
    103,531.23x = 155,300.30 × 28,645.11
  4. Step 4: Simplify right side
    103,531.23x = 4,448,594,033.31
  5. Step 5: Solve for x
    x = 4,448,594,033.31/103,531.23
  6. Step 6: Final answer
    x = 42,968.62

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1.5x scale

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.