Home / 131,490.40-197,235.60-47,290.90

Finding the Fourth Proportional to 131,490.40, 197,235.60 and 47,290.90

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Solution

The fourth proportional to 131,490.40, 197,235.60 and 47,290.90 is: 70,936.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,490.40 : 197,235.60 = 47,290.90 : x
  2. Step 2: Convert to fraction form
    131,490.40/197,235.60 = 47,290.90/x
  3. Step 3: Cross multiply
    131,490.40x = 197,235.60 × 47,290.90
  4. Step 4: Simplify right side
    131,490.40x = 9,327,449,036.04
  5. Step 5: Solve for x
    x = 9,327,449,036.04/131,490.40
  6. Step 6: Final answer
    x = 70,936.35

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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.