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Finding the Fourth Proportional to 118,900.93, 178,378.71 and 40,013.05

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Solution

The fourth proportional to 118,900.93, 178,378.71 and 40,013.05 is: 60,028.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,900.93 : 178,378.71 = 40,013.05 : x
  2. Step 2: Convert to fraction form
    118,900.93/178,378.71 = 40,013.05/x
  3. Step 3: Cross multiply
    118,900.93x = 178,378.71 × 40,013.05
  4. Step 4: Simplify right side
    118,900.93x = 7,137,476,242.17
  5. Step 5: Solve for x
    x = 7,137,476,242.17/118,900.93
  6. Step 6: Final answer
    x = 60,028.77

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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.