Home / 147,412.20-221,069.70-53,905.80

Finding the Fourth Proportional to 147,412.20, 221,069.70 and 53,905.80

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Solution

The fourth proportional to 147,412.20, 221,069.70 and 53,905.80 is: 80,840.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,412.20 : 221,069.70 = 53,905.80 : x
  2. Step 2: Convert to fraction form
    147,412.20/221,069.70 = 53,905.80/x
  3. Step 3: Cross multiply
    147,412.20x = 221,069.70 × 53,905.80
  4. Step 4: Simplify right side
    147,412.20x = 11,916,939,034.26
  5. Step 5: Solve for x
    x = 11,916,939,034.26/147,412.20
  6. Step 6: Final answer
    x = 80,840.93

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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.