Home / 104,869.02-144,719.64-57,121.92

Finding the Fourth Proportional to 104,869.02, 144,719.64 and 57,121.92

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Solution

The fourth proportional to 104,869.02, 144,719.64 and 57,121.92 is: 78,828.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,869.02 : 144,719.64 = 57,121.92 : x
  2. Step 2: Convert to fraction form
    104,869.02/144,719.64 = 57,121.92/x
  3. Step 3: Cross multiply
    104,869.02x = 144,719.64 × 57,121.92
  4. Step 4: Simplify right side
    104,869.02x = 8,266,663,698.51
  5. Step 5: Solve for x
    x = 8,266,663,698.51/104,869.02
  6. Step 6: Final answer
    x = 78,828.46

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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.