Home / 147,828.42-221,739.48-47,988.45

Finding the Fourth Proportional to 147,828.42, 221,739.48 and 47,988.45

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Solution

The fourth proportional to 147,828.42, 221,739.48 and 47,988.45 is: 71,981.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,828.42 : 221,739.48 = 47,988.45 : x
  2. Step 2: Convert to fraction form
    147,828.42/221,739.48 = 47,988.45/x
  3. Step 3: Cross multiply
    147,828.42x = 221,739.48 × 47,988.45
  4. Step 4: Simplify right side
    147,828.42x = 10,640,933,949.01
  5. Step 5: Solve for x
    x = 10,640,933,949.01/147,828.42
  6. Step 6: Final answer
    x = 71,981.65

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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.