Home / 145,171.62-217,752.48-45,332.64

Finding the Fourth Proportional to 145,171.62, 217,752.48 and 45,332.64

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Solution

The fourth proportional to 145,171.62, 217,752.48 and 45,332.64 is: 67,997.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,171.62 : 217,752.48 = 45,332.64 : x
  2. Step 2: Convert to fraction form
    145,171.62/217,752.48 = 45,332.64/x
  3. Step 3: Cross multiply
    145,171.62x = 217,752.48 × 45,332.64
  4. Step 4: Simplify right side
    145,171.62x = 9,871,294,784.95
  5. Step 5: Solve for x
    x = 9,871,294,784.95/145,171.62
  6. Step 6: Final answer
    x = 67,997.41

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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.