Home / 170,018.02-254,917.68-81,269.56

Finding the Fourth Proportional to 170,018.02, 254,917.68 and 81,269.56

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Solution

The fourth proportional to 170,018.02, 254,917.68 and 81,269.56 is: 121,852.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,018.02 : 254,917.68 = 81,269.56 : x
  2. Step 2: Convert to fraction form
    170,018.02/254,917.68 = 81,269.56/x
  3. Step 3: Cross multiply
    170,018.02x = 254,917.68 × 81,269.56
  4. Step 4: Simplify right side
    170,018.02x = 20,717,047,689.82
  5. Step 5: Solve for x
    x = 20,717,047,689.82/170,018.02
  6. Step 6: Final answer
    x = 121,852.07

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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.