Home / 102,820.60-154,461.30-98,622.20

Finding the Fourth Proportional to 102,820.60, 154,461.30 and 98,622.20

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Solution

The fourth proportional to 102,820.60, 154,461.30 and 98,622.20 is: 148,154.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,820.60 : 154,461.30 = 98,622.20 : x
  2. Step 2: Convert to fraction form
    102,820.60/154,461.30 = 98,622.20/x
  3. Step 3: Cross multiply
    102,820.60x = 154,461.30 × 98,622.20
  4. Step 4: Simplify right side
    102,820.60x = 15,233,313,220.86
  5. Step 5: Solve for x
    x = 15,233,313,220.86/102,820.60
  6. Step 6: Final answer
    x = 148,154.29

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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.