Home / 145,158.21-217,751.09-56,418.57

Finding the Fourth Proportional to 145,158.21, 217,751.09 and 56,418.57

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Solution

The fourth proportional to 145,158.21, 217,751.09 and 56,418.57 is: 84,633.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,158.21 : 217,751.09 = 56,418.57 : x
  2. Step 2: Convert to fraction form
    145,158.21/217,751.09 = 56,418.57/x
  3. Step 3: Cross multiply
    145,158.21x = 217,751.09 × 56,418.57
  4. Step 4: Simplify right side
    145,158.21x = 12,285,204,831.65
  5. Step 5: Solve for x
    x = 12,285,204,831.65/145,158.21
  6. Step 6: Final answer
    x = 84,633.21

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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.