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Finding the Fourth Proportional to 130,955.68, 180,714.06 and 80,053.66

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Solution

The fourth proportional to 130,955.68, 180,714.06 and 80,053.66 is: 110,471.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,955.68 : 180,714.06 = 80,053.66 : x
  2. Step 2: Convert to fraction form
    130,955.68/180,714.06 = 80,053.66/x
  3. Step 3: Cross multiply
    130,955.68x = 180,714.06 × 80,053.66
  4. Step 4: Simplify right side
    130,955.68x = 14,466,821,916.46
  5. Step 5: Solve for x
    x = 14,466,821,916.46/130,955.68
  6. Step 6: Final answer
    x = 110,471.13

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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.