Home / 145,290.37-217,944.78-38,672.58

Finding the Fourth Proportional to 145,290.37, 217,944.78 and 38,672.58

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Solution

The fourth proportional to 145,290.37, 217,944.78 and 38,672.58 is: 58,011.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,290.37 : 217,944.78 = 38,672.58 : x
  2. Step 2: Convert to fraction form
    145,290.37/217,944.78 = 38,672.58/x
  3. Step 3: Cross multiply
    145,290.37x = 217,944.78 × 38,672.58
  4. Step 4: Simplify right side
    145,290.37x = 8,428,487,829.94
  5. Step 5: Solve for x
    x = 8,428,487,829.94/145,290.37
  6. Step 6: Final answer
    x = 58,011.33

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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.