Home / 154,198.49-212,705.19-90,523.98

Finding the Fourth Proportional to 154,198.49, 212,705.19 and 90,523.98

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Solution

The fourth proportional to 154,198.49, 212,705.19 and 90,523.98 is: 124,871.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,198.49 : 212,705.19 = 90,523.98 : x
  2. Step 2: Convert to fraction form
    154,198.49/212,705.19 = 90,523.98/x
  3. Step 3: Cross multiply
    154,198.49x = 212,705.19 × 90,523.98
  4. Step 4: Simplify right side
    154,198.49x = 19,254,920,365.46
  5. Step 5: Solve for x
    x = 19,254,920,365.46/154,198.49
  6. Step 6: Final answer
    x = 124,871.01

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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.