Home / 147,834.80-221,752.20-139,086.80

Finding the Fourth Proportional to 147,834.80, 221,752.20 and 139,086.80

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Solution

The fourth proportional to 147,834.80, 221,752.20 and 139,086.80 is: 208,630.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,834.80 : 221,752.20 = 139,086.80 : x
  2. Step 2: Convert to fraction form
    147,834.80/221,752.20 = 139,086.80/x
  3. Step 3: Cross multiply
    147,834.80x = 221,752.20 × 139,086.80
  4. Step 4: Simplify right side
    147,834.80x = 30,842,803,890.96
  5. Step 5: Solve for x
    x = 30,842,803,890.96/147,834.80
  6. Step 6: Final answer
    x = 208,630.20

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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.