Home / 171,941.40-257,912.10-142,392.60

Finding the Fourth Proportional to 171,941.40, 257,912.10 and 142,392.60

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Solution

The fourth proportional to 171,941.40, 257,912.10 and 142,392.60 is: 213,588.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,941.40 : 257,912.10 = 142,392.60 : x
  2. Step 2: Convert to fraction form
    171,941.40/257,912.10 = 142,392.60/x
  3. Step 3: Cross multiply
    171,941.40x = 257,912.10 × 142,392.60
  4. Step 4: Simplify right side
    171,941.40x = 36,724,774,490.46
  5. Step 5: Solve for x
    x = 36,724,774,490.46/171,941.40
  6. Step 6: Final answer
    x = 213,588.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.