Home / 147,743.40-221,615.10-130,830.60

Finding the Fourth Proportional to 147,743.40, 221,615.10 and 130,830.60

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Solution

The fourth proportional to 147,743.40, 221,615.10 and 130,830.60 is: 196,245.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,743.40 : 221,615.10 = 130,830.60 : x
  2. Step 2: Convert to fraction form
    147,743.40/221,615.10 = 130,830.60/x
  3. Step 3: Cross multiply
    147,743.40x = 221,615.10 × 130,830.60
  4. Step 4: Simplify right side
    147,743.40x = 28,994,036,502.06
  5. Step 5: Solve for x
    x = 28,994,036,502.06/147,743.40
  6. Step 6: Final answer
    x = 196,245.90

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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.