Home / 154,755.10-213,483.43-101,071.54

Finding the Fourth Proportional to 154,755.10, 213,483.43 and 101,071.54

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Solution

The fourth proportional to 154,755.10, 213,483.43 and 101,071.54 is: 139,427.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,755.10 : 213,483.43 = 101,071.54 : x
  2. Step 2: Convert to fraction form
    154,755.10/213,483.43 = 101,071.54/x
  3. Step 3: Cross multiply
    154,755.10x = 213,483.43 × 101,071.54
  4. Step 4: Simplify right side
    154,755.10x = 21,577,099,034.58
  5. Step 5: Solve for x
    x = 21,577,099,034.58/154,755.10
  6. Step 6: Final answer
    x = 139,427.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.