Home / 147,841.30-221,506.80-68,793.40

Finding the Fourth Proportional to 147,841.30, 221,506.80 and 68,793.40

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Solution

The fourth proportional to 147,841.30, 221,506.80 and 68,793.40 is: 103,071.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,841.30 : 221,506.80 = 68,793.40 : x
  2. Step 2: Convert to fraction form
    147,841.30/221,506.80 = 68,793.40/x
  3. Step 3: Cross multiply
    147,841.30x = 221,506.80 × 68,793.40
  4. Step 4: Simplify right side
    147,841.30x = 15,238,205,895.12
  5. Step 5: Solve for x
    x = 15,238,205,895.12/147,841.30
  6. Step 6: Final answer
    x = 103,071.37

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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.