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Finding the Fourth Proportional to 130,955.70, 180,714.06 and 80,053.68

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Solution

The fourth proportional to 130,955.70, 180,714.06 and 80,053.68 is: 110,471.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,955.70 : 180,714.06 = 80,053.68 : x
  2. Step 2: Convert to fraction form
    130,955.70/180,714.06 = 80,053.68/x
  3. Step 3: Cross multiply
    130,955.70x = 180,714.06 × 80,053.68
  4. Step 4: Simplify right side
    130,955.70x = 14,466,825,530.74
  5. Step 5: Solve for x
    x = 14,466,825,530.74/130,955.70
  6. Step 6: Final answer
    x = 110,471.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.