Home / 154,832.31-213,589.80-101,148.75

Finding the Fourth Proportional to 154,832.31, 213,589.80 and 101,148.75

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Solution

The fourth proportional to 154,832.31, 213,589.80 and 101,148.75 is: 139,533.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,832.31 : 213,589.80 = 101,148.75 : x
  2. Step 2: Convert to fraction form
    154,832.31/213,589.80 = 101,148.75/x
  3. Step 3: Cross multiply
    154,832.31x = 213,589.80 × 101,148.75
  4. Step 4: Simplify right side
    154,832.31x = 21,604,341,282.75
  5. Step 5: Solve for x
    x = 21,604,341,282.75/154,832.31
  6. Step 6: Final answer
    x = 139,533.80

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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.