Home / 104,429.47-156,446.93-80,940.91

Finding the Fourth Proportional to 104,429.47, 156,446.93 and 80,940.91

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Solution

The fourth proportional to 104,429.47, 156,446.93 and 80,940.91 is: 121,258.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,429.47 : 156,446.93 = 80,940.91 : x
  2. Step 2: Convert to fraction form
    104,429.47/156,446.93 = 80,940.91/x
  3. Step 3: Cross multiply
    104,429.47x = 156,446.93 × 80,940.91
  4. Step 4: Simplify right side
    104,429.47x = 12,662,956,476.20
  5. Step 5: Solve for x
    x = 12,662,956,476.20/104,429.47
  6. Step 6: Final answer
    x = 121,258.46

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1.5x scale

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.