Home / 113,855.40-170,783.10-76,530.60

Finding the Fourth Proportional to 113,855.40, 170,783.10 and 76,530.60

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Solution

The fourth proportional to 113,855.40, 170,783.10 and 76,530.60 is: 114,795.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,855.40 : 170,783.10 = 76,530.60 : x
  2. Step 2: Convert to fraction form
    113,855.40/170,783.10 = 76,530.60/x
  3. Step 3: Cross multiply
    113,855.40x = 170,783.10 × 76,530.60
  4. Step 4: Simplify right side
    113,855.40x = 13,070,133,112.86
  5. Step 5: Solve for x
    x = 13,070,133,112.86/113,855.40
  6. Step 6: Final answer
    x = 114,795.90

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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.