Home / 154,741.12-213,532.06-85,824.08

Finding the Fourth Proportional to 154,741.12, 213,532.06 and 85,824.08

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Solution

The fourth proportional to 154,741.12, 213,532.06 and 85,824.08 is: 118,431.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,741.12 : 213,532.06 = 85,824.08 : x
  2. Step 2: Convert to fraction form
    154,741.12/213,532.06 = 85,824.08/x
  3. Step 3: Cross multiply
    154,741.12x = 213,532.06 × 85,824.08
  4. Step 4: Simplify right side
    154,741.12x = 18,326,193,059.60
  5. Step 5: Solve for x
    x = 18,326,193,059.60/154,741.12
  6. Step 6: Final answer
    x = 118,431.30

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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.