Home / 118,900.28-178,341.30-43,985.20

Finding the Fourth Proportional to 118,900.28, 178,341.30 and 43,985.20

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Solution

The fourth proportional to 118,900.28, 178,341.30 and 43,985.20 is: 65,974.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,900.28 : 178,341.30 = 43,985.20 : x
  2. Step 2: Convert to fraction form
    118,900.28/178,341.30 = 43,985.20/x
  3. Step 3: Cross multiply
    118,900.28x = 178,341.30 × 43,985.20
  4. Step 4: Simplify right side
    118,900.28x = 7,844,377,748.76
  5. Step 5: Solve for x
    x = 7,844,377,748.76/118,900.28
  6. Step 6: Final answer
    x = 65,974.43

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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.