Home / 147,830.50-221,423.68-97,172.34

Finding the Fourth Proportional to 147,830.50, 221,423.68 and 97,172.34

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Solution

The fourth proportional to 147,830.50, 221,423.68 and 97,172.34 is: 145,546.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,830.50 : 221,423.68 = 97,172.34 : x
  2. Step 2: Convert to fraction form
    147,830.50/221,423.68 = 97,172.34/x
  3. Step 3: Cross multiply
    147,830.50x = 221,423.68 × 97,172.34
  4. Step 4: Simplify right side
    147,830.50x = 21,516,256,874.08
  5. Step 5: Solve for x
    x = 21,516,256,874.08/147,830.50
  6. Step 6: Final answer
    x = 145,546.81

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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.