Home / 187,522.80-258,818.36-142,121.60

Finding the Fourth Proportional to 187,522.80, 258,818.36 and 142,121.60

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Solution

The fourth proportional to 187,522.80, 258,818.36 and 142,121.60 is: 196,155.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,522.80 : 258,818.36 = 142,121.60 : x
  2. Step 2: Convert to fraction form
    187,522.80/258,818.36 = 142,121.60/x
  3. Step 3: Cross multiply
    187,522.80x = 258,818.36 × 142,121.60
  4. Step 4: Simplify right side
    187,522.80x = 36,783,677,427.88
  5. Step 5: Solve for x
    x = 36,783,677,427.88/187,522.80
  6. Step 6: Final answer
    x = 196,155.76

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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.