Home / 118,905.10-178,206.45-48,705.10

Finding the Fourth Proportional to 118,905.10, 178,206.45 and 48,705.10

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Solution

The fourth proportional to 118,905.10, 178,206.45 and 48,705.10 is: 72,995.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,905.10 : 178,206.45 = 48,705.10 : x
  2. Step 2: Convert to fraction form
    118,905.10/178,206.45 = 48,705.10/x
  3. Step 3: Cross multiply
    118,905.10x = 178,206.45 × 48,705.10
  4. Step 4: Simplify right side
    118,905.10x = 8,679,562,967.90
  5. Step 5: Solve for x
    x = 8,679,562,967.90/118,905.10
  6. Step 6: Final answer
    x = 72,995.72

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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.