Home / 147,901.40-221,808.90-53,120.60

Finding the Fourth Proportional to 147,901.40, 221,808.90 and 53,120.60

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Solution

The fourth proportional to 147,901.40, 221,808.90 and 53,120.60 is: 79,665.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,901.40 : 221,808.90 = 53,120.60 : x
  2. Step 2: Convert to fraction form
    147,901.40/221,808.90 = 53,120.60/x
  3. Step 3: Cross multiply
    147,901.40x = 221,808.90 × 53,120.60
  4. Step 4: Simplify right side
    147,901.40x = 11,782,621,853.34
  5. Step 5: Solve for x
    x = 11,782,621,853.34/147,901.40
  6. Step 6: Final answer
    x = 79,665.38

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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.