Home / 154,838.54-213,626.72-90,293.22

Finding the Fourth Proportional to 154,838.54, 213,626.72 and 90,293.22

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Solution

The fourth proportional to 154,838.54, 213,626.72 and 90,293.22 is: 124,575.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,838.54 : 213,626.72 = 90,293.22 : x
  2. Step 2: Convert to fraction form
    154,838.54/213,626.72 = 90,293.22/x
  3. Step 3: Cross multiply
    154,838.54x = 213,626.72 × 90,293.22
  4. Step 4: Simplify right side
    154,838.54x = 19,289,044,426.84
  5. Step 5: Solve for x
    x = 19,289,044,426.84/154,838.54
  6. Step 6: Final answer
    x = 124,575.22

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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.