Home / 115,836.40-173,810-65,275.76

Finding the Fourth Proportional to 115,836.40, 173,810 and 65,275.76

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Solution

The fourth proportional to 115,836.40, 173,810 and 65,275.76 is: 97,944.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,836.40 : 173,810 = 65,275.76 : x
  2. Step 2: Convert to fraction form
    115,836.40/173,810 = 65,275.76/x
  3. Step 3: Cross multiply
    115,836.40x = 173,810 × 65,275.76
  4. Step 4: Simplify right side
    115,836.40x = 11,345,579,845.60
  5. Step 5: Solve for x
    x = 11,345,579,845.60/115,836.40
  6. Step 6: Final answer
    x = 97,944.86

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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.