Home / 101,982.76-152,996.04-42,784.32

Finding the Fourth Proportional to 101,982.76, 152,996.04 and 42,784.32

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Solution

The fourth proportional to 101,982.76, 152,996.04 and 42,784.32 is: 64,185.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,982.76 : 152,996.04 = 42,784.32 : x
  2. Step 2: Convert to fraction form
    101,982.76/152,996.04 = 42,784.32/x
  3. Step 3: Cross multiply
    101,982.76x = 152,996.04 × 42,784.32
  4. Step 4: Simplify right side
    101,982.76x = 6,545,831,534.09
  5. Step 5: Solve for x
    x = 6,545,831,534.09/101,982.76
  6. Step 6: Final answer
    x = 64,185.67

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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.