Home / 154,341.94-213,033.46-90,722.38

Finding the Fourth Proportional to 154,341.94, 213,033.46 and 90,722.38

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Solution

The fourth proportional to 154,341.94, 213,033.46 and 90,722.38 is: 125,221.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,341.94 : 213,033.46 = 90,722.38 : x
  2. Step 2: Convert to fraction form
    154,341.94/213,033.46 = 90,722.38/x
  3. Step 3: Cross multiply
    154,341.94x = 213,033.46 × 90,722.38
  4. Step 4: Simplify right side
    154,341.94x = 19,326,902,510.83
  5. Step 5: Solve for x
    x = 19,326,902,510.83/154,341.94
  6. Step 6: Final answer
    x = 125,221.33

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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.