Home / 145,448.32-218,172.78-40,267.60

Finding the Fourth Proportional to 145,448.32, 218,172.78 and 40,267.60

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Solution

The fourth proportional to 145,448.32, 218,172.78 and 40,267.60 is: 60,401.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,448.32 : 218,172.78 = 40,267.60 : x
  2. Step 2: Convert to fraction form
    145,448.32/218,172.78 = 40,267.60/x
  3. Step 3: Cross multiply
    145,448.32x = 218,172.78 × 40,267.60
  4. Step 4: Simplify right side
    145,448.32x = 8,785,294,235.93
  5. Step 5: Solve for x
    x = 8,785,294,235.93/145,448.32
  6. Step 6: Final answer
    x = 60,401.48

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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.