Home / 145,203.84-217,771.20-40,031.28

Finding the Fourth Proportional to 145,203.84, 217,771.20 and 40,031.28

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Solution

The fourth proportional to 145,203.84, 217,771.20 and 40,031.28 is: 60,037.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,203.84 : 217,771.20 = 40,031.28 : x
  2. Step 2: Convert to fraction form
    145,203.84/217,771.20 = 40,031.28/x
  3. Step 3: Cross multiply
    145,203.84x = 217,771.20 × 40,031.28
  4. Step 4: Simplify right side
    145,203.84x = 8,717,659,883.14
  5. Step 5: Solve for x
    x = 8,717,659,883.14/145,203.84
  6. Step 6: Final answer
    x = 60,037.39

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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.