Home / 154,045.20-231,067.80-94,688.40

Finding the Fourth Proportional to 154,045.20, 231,067.80 and 94,688.40

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Solution

The fourth proportional to 154,045.20, 231,067.80 and 94,688.40 is: 142,032.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,045.20 : 231,067.80 = 94,688.40 : x
  2. Step 2: Convert to fraction form
    154,045.20/231,067.80 = 94,688.40/x
  3. Step 3: Cross multiply
    154,045.20x = 231,067.80 × 94,688.40
  4. Step 4: Simplify right side
    154,045.20x = 21,879,440,273.52
  5. Step 5: Solve for x
    x = 21,879,440,273.52/154,045.20
  6. Step 6: Final answer
    x = 142,032.60

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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.