Home / 147,393.18-221,136.50-52,621.33

Finding the Fourth Proportional to 147,393.18, 221,136.50 and 52,621.33

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Solution

The fourth proportional to 147,393.18, 221,136.50 and 52,621.33 is: 78,948.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,393.18 : 221,136.50 = 52,621.33 : x
  2. Step 2: Convert to fraction form
    147,393.18/221,136.50 = 52,621.33/x
  3. Step 3: Cross multiply
    147,393.18x = 221,136.50 × 52,621.33
  4. Step 4: Simplify right side
    147,393.18x = 11,636,495,504.31
  5. Step 5: Solve for x
    x = 11,636,495,504.31/147,393.18
  6. Step 6: Final answer
    x = 78,948.67

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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.