Home / 154,669.94-213,434.40-90,995.44

Finding the Fourth Proportional to 154,669.94, 213,434.40 and 90,995.44

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Solution

The fourth proportional to 154,669.94, 213,434.40 and 90,995.44 is: 125,567.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,669.94 : 213,434.40 = 90,995.44 : x
  2. Step 2: Convert to fraction form
    154,669.94/213,434.40 = 90,995.44/x
  3. Step 3: Cross multiply
    154,669.94x = 213,434.40 × 90,995.44
  4. Step 4: Simplify right side
    154,669.94x = 19,421,557,139.14
  5. Step 5: Solve for x
    x = 19,421,557,139.14/154,669.94
  6. Step 6: Final answer
    x = 125,567.76

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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.