Home / 154,022.60-212,538.90-86,034.24

Finding the Fourth Proportional to 154,022.60, 212,538.90 and 86,034.24

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Solution

The fourth proportional to 154,022.60, 212,538.90 and 86,034.24 is: 118,720.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,022.60 : 212,538.90 = 86,034.24 : x
  2. Step 2: Convert to fraction form
    154,022.60/212,538.90 = 86,034.24/x
  3. Step 3: Cross multiply
    154,022.60x = 212,538.90 × 86,034.24
  4. Step 4: Simplify right side
    154,022.60x = 18,285,622,731.94
  5. Step 5: Solve for x
    x = 18,285,622,731.94/154,022.60
  6. Step 6: Final answer
    x = 118,720.39

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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.