Home / 107,643.35-161,423.40-51,468.43

Finding the Fourth Proportional to 107,643.35, 161,423.40 and 51,468.43

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Solution

The fourth proportional to 107,643.35, 161,423.40 and 51,468.43 is: 77,182.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,643.35 : 161,423.40 = 51,468.43 : x
  2. Step 2: Convert to fraction form
    107,643.35/161,423.40 = 51,468.43/x
  3. Step 3: Cross multiply
    107,643.35x = 161,423.40 × 51,468.43
  4. Step 4: Simplify right side
    107,643.35x = 8,308,208,963.26
  5. Step 5: Solve for x
    x = 8,308,208,963.26/107,643.35
  6. Step 6: Final answer
    x = 77,182.74

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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.