Home / 100,290.49-150,445.19-28,243.10

Finding the Fourth Proportional to 100,290.49, 150,445.19 and 28,243.10

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Solution

The fourth proportional to 100,290.49, 150,445.19 and 28,243.10 is: 42,367.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,290.49 : 150,445.19 = 28,243.10 : x
  2. Step 2: Convert to fraction form
    100,290.49/150,445.19 = 28,243.10/x
  3. Step 3: Cross multiply
    100,290.49x = 150,445.19 × 28,243.10
  4. Step 4: Simplify right side
    100,290.49x = 4,249,038,992.41
  5. Step 5: Solve for x
    x = 4,249,038,992.41/100,290.49
  6. Step 6: Final answer
    x = 42,367.32

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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.