Home / 136,622.20-204,714.60-89,820.40

Finding the Fourth Proportional to 136,622.20, 204,714.60 and 89,820.40

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Solution

The fourth proportional to 136,622.20, 204,714.60 and 89,820.40 is: 134,586.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,622.20 : 204,714.60 = 89,820.40 : x
  2. Step 2: Convert to fraction form
    136,622.20/204,714.60 = 89,820.40/x
  3. Step 3: Cross multiply
    136,622.20x = 204,714.60 × 89,820.40
  4. Step 4: Simplify right side
    136,622.20x = 18,387,547,257.84
  5. Step 5: Solve for x
    x = 18,387,547,257.84/136,622.20
  6. Step 6: Final answer
    x = 134,586.82

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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.