Home / 154,945-213,860.58-94,565.56

Finding the Fourth Proportional to 154,945, 213,860.58 and 94,565.56

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Solution

The fourth proportional to 154,945, 213,860.58 and 94,565.56 is: 130,522.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,945 : 213,860.58 = 94,565.56 : x
  2. Step 2: Convert to fraction form
    154,945/213,860.58 = 94,565.56/x
  3. Step 3: Cross multiply
    154,945x = 213,860.58 × 94,565.56
  4. Step 4: Simplify right side
    154,945x = 20,223,845,509.62
  5. Step 5: Solve for x
    x = 20,223,845,509.62/154,945
  6. Step 6: Final answer
    x = 130,522.74

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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.