Home / 145,417.87-218,131.66-40,228.03

Finding the Fourth Proportional to 145,417.87, 218,131.66 and 40,228.03

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Solution

The fourth proportional to 145,417.87, 218,131.66 and 40,228.03 is: 60,343.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,417.87 : 218,131.66 = 40,228.03 : x
  2. Step 2: Convert to fraction form
    145,417.87/218,131.66 = 40,228.03/x
  3. Step 3: Cross multiply
    145,417.87x = 218,131.66 × 40,228.03
  4. Step 4: Simplify right side
    145,417.87x = 8,775,006,840.62
  5. Step 5: Solve for x
    x = 8,775,006,840.62/145,417.87
  6. Step 6: Final answer
    x = 60,343.39

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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.