Home / 147,834.40-221,751.60-54,320.80

Finding the Fourth Proportional to 147,834.40, 221,751.60 and 54,320.80

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Solution

The fourth proportional to 147,834.40, 221,751.60 and 54,320.80 is: 81,481.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,834.40 : 221,751.60 = 54,320.80 : x
  2. Step 2: Convert to fraction form
    147,834.40/221,751.60 = 54,320.80/x
  3. Step 3: Cross multiply
    147,834.40x = 221,751.60 × 54,320.80
  4. Step 4: Simplify right side
    147,834.40x = 12,045,724,313.28
  5. Step 5: Solve for x
    x = 12,045,724,313.28/147,834.40
  6. Step 6: Final answer
    x = 81,481.20

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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.