Home / 118,489.94-177,784.32-51,977.81

Finding the Fourth Proportional to 118,489.94, 177,784.32 and 51,977.81

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Solution

The fourth proportional to 118,489.94, 177,784.32 and 51,977.81 is: 77,988.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,489.94 : 177,784.32 = 51,977.81 : x
  2. Step 2: Convert to fraction form
    118,489.94/177,784.32 = 51,977.81/x
  3. Step 3: Cross multiply
    118,489.94x = 177,784.32 × 51,977.81
  4. Step 4: Simplify right side
    118,489.94x = 9,240,838,717.02
  5. Step 5: Solve for x
    x = 9,240,838,717.02/118,489.94
  6. Step 6: Final answer
    x = 77,988.39

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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.