Home / 154,145.55-231,236.88-54,285.12

Finding the Fourth Proportional to 154,145.55, 231,236.88 and 54,285.12

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Solution

The fourth proportional to 154,145.55, 231,236.88 and 54,285.12 is: 81,434.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,145.55 : 231,236.88 = 54,285.12 : x
  2. Step 2: Convert to fraction form
    154,145.55/231,236.88 = 54,285.12/x
  3. Step 3: Cross multiply
    154,145.55x = 231,236.88 × 54,285.12
  4. Step 4: Simplify right side
    154,145.55x = 12,552,721,779.23
  5. Step 5: Solve for x
    x = 12,552,721,779.23/154,145.55
  6. Step 6: Final answer
    x = 81,434.21

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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.