Home / 145,262.10-217,601.55-82,859.70

Finding the Fourth Proportional to 145,262.10, 217,601.55 and 82,859.70

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Solution

The fourth proportional to 145,262.10, 217,601.55 and 82,859.70 is: 124,123.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,262.10 : 217,601.55 = 82,859.70 : x
  2. Step 2: Convert to fraction form
    145,262.10/217,601.55 = 82,859.70/x
  3. Step 3: Cross multiply
    145,262.10x = 217,601.55 × 82,859.70
  4. Step 4: Simplify right side
    145,262.10x = 18,030,399,152.54
  5. Step 5: Solve for x
    x = 18,030,399,152.54/145,262.10
  6. Step 6: Final answer
    x = 124,123.22

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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.