Home / 115,336.66-159,155.94-75,127.45

Finding the Fourth Proportional to 115,336.66, 159,155.94 and 75,127.45

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Solution

The fourth proportional to 115,336.66, 159,155.94 and 75,127.45 is: 103,670.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,336.66 : 159,155.94 = 75,127.45 : x
  2. Step 2: Convert to fraction form
    115,336.66/159,155.94 = 75,127.45/x
  3. Step 3: Cross multiply
    115,336.66x = 159,155.94 × 75,127.45
  4. Step 4: Simplify right side
    115,336.66x = 11,956,979,924.55
  5. Step 5: Solve for x
    x = 11,956,979,924.55/115,336.66
  6. Step 6: Final answer
    x = 103,670.25

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.