Home / 118,923.88-178,415.57-83,931.88

Finding the Fourth Proportional to 118,923.88, 178,415.57 and 83,931.88

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Solution

The fourth proportional to 118,923.88, 178,415.57 and 83,931.88 is: 125,918.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,923.88 : 178,415.57 = 83,931.88 : x
  2. Step 2: Convert to fraction form
    118,923.88/178,415.57 = 83,931.88/x
  3. Step 3: Cross multiply
    118,923.88x = 178,415.57 × 83,931.88
  4. Step 4: Simplify right side
    118,923.88x = 14,974,754,211.37
  5. Step 5: Solve for x
    x = 14,974,754,211.37/118,923.88
  6. Step 6: Final answer
    x = 125,918.82

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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.