Home / 145,165.69-217,637.79-66,224.71

Finding the Fourth Proportional to 145,165.69, 217,637.79 and 66,224.71

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Solution

The fourth proportional to 145,165.69, 217,637.79 and 66,224.71 is: 99,286.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,165.69 : 217,637.79 = 66,224.71 : x
  2. Step 2: Convert to fraction form
    145,165.69/217,637.79 = 66,224.71/x
  3. Step 3: Cross multiply
    145,165.69x = 217,637.79 × 66,224.71
  4. Step 4: Simplify right side
    145,165.69x = 14,412,999,527.79
  5. Step 5: Solve for x
    x = 14,412,999,527.79/145,165.69
  6. Step 6: Final answer
    x = 99,286.54

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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.