Home / 103,038.36-154,556.46-28,158.45

Finding the Fourth Proportional to 103,038.36, 154,556.46 and 28,158.45

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Solution

The fourth proportional to 103,038.36, 154,556.46 and 28,158.45 is: 42,237.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,038.36 : 154,556.46 = 28,158.45 : x
  2. Step 2: Convert to fraction form
    103,038.36/154,556.46 = 28,158.45/x
  3. Step 3: Cross multiply
    103,038.36x = 154,556.46 × 28,158.45
  4. Step 4: Simplify right side
    103,038.36x = 4,352,070,351.09
  5. Step 5: Solve for x
    x = 4,352,070,351.09/103,038.36
  6. Step 6: Final answer
    x = 42,237.38

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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.