Home / 118,923.63-178,415.19-83,931.63

Finding the Fourth Proportional to 118,923.63, 178,415.19 and 83,931.63

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Solution

The fourth proportional to 118,923.63, 178,415.19 and 83,931.63 is: 125,918.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,923.63 : 178,415.19 = 83,931.63 : x
  2. Step 2: Convert to fraction form
    118,923.63/178,415.19 = 83,931.63/x
  3. Step 3: Cross multiply
    118,923.63x = 178,415.19 × 83,931.63
  4. Step 4: Simplify right side
    118,923.63x = 14,974,677,713.46
  5. Step 5: Solve for x
    x = 14,974,677,713.46/118,923.63
  6. Step 6: Final answer
    x = 125,918.44

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1.5x scale

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.