Home / 145,840.36-218,772.88-40,659.42

Finding the Fourth Proportional to 145,840.36, 218,772.88 and 40,659.42

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Solution

The fourth proportional to 145,840.36, 218,772.88 and 40,659.42 is: 60,992.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,840.36 : 218,772.88 = 40,659.42 : x
  2. Step 2: Convert to fraction form
    145,840.36/218,772.88 = 40,659.42/x
  3. Step 3: Cross multiply
    145,840.36x = 218,772.88 × 40,659.42
  4. Step 4: Simplify right side
    145,840.36x = 8,895,178,412.53
  5. Step 5: Solve for x
    x = 8,895,178,412.53/145,840.36
  6. Step 6: Final answer
    x = 60,992.57

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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.