Home / 154,671.07-213,482.24-100,862.37

Finding the Fourth Proportional to 154,671.07, 213,482.24 and 100,862.37

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Solution

The fourth proportional to 154,671.07, 213,482.24 and 100,862.37 is: 139,213.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,671.07 : 213,482.24 = 100,862.37 : x
  2. Step 2: Convert to fraction form
    154,671.07/213,482.24 = 100,862.37/x
  3. Step 3: Cross multiply
    154,671.07x = 213,482.24 × 100,862.37
  4. Step 4: Simplify right side
    154,671.07x = 21,532,324,679.31
  5. Step 5: Solve for x
    x = 21,532,324,679.31/154,671.07
  6. Step 6: Final answer
    x = 139,213.65

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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.