Home / 124,212.98-187,156.41-102,512.42

Finding the Fourth Proportional to 124,212.98, 187,156.41 and 102,512.42

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Solution

The fourth proportional to 124,212.98, 187,156.41 and 102,512.42 is: 154,459.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,212.98 : 187,156.41 = 102,512.42 : x
  2. Step 2: Convert to fraction form
    124,212.98/187,156.41 = 102,512.42/x
  3. Step 3: Cross multiply
    124,212.98x = 187,156.41 × 102,512.42
  4. Step 4: Simplify right side
    124,212.98x = 19,185,856,507.61
  5. Step 5: Solve for x
    x = 19,185,856,507.61/124,212.98
  6. Step 6: Final answer
    x = 154,459.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.