Home / 145,837.40-218,760.98-40,647.56

Finding the Fourth Proportional to 145,837.40, 218,760.98 and 40,647.56

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Solution

The fourth proportional to 145,837.40, 218,760.98 and 40,647.56 is: 60,972.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,837.40 : 218,760.98 = 40,647.56 : x
  2. Step 2: Convert to fraction form
    145,837.40/218,760.98 = 40,647.56/x
  3. Step 3: Cross multiply
    145,837.40x = 218,760.98 × 40,647.56
  4. Step 4: Simplify right side
    145,837.40x = 8,892,100,060.21
  5. Step 5: Solve for x
    x = 8,892,100,060.21/145,837.40
  6. Step 6: Final answer
    x = 60,972.70

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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.