Home / 104,875.32-144,727.20-57,128.52

Finding the Fourth Proportional to 104,875.32, 144,727.20 and 57,128.52

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Solution

The fourth proportional to 104,875.32, 144,727.20 and 57,128.52 is: 78,836.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,875.32 : 144,727.20 = 57,128.52 : x
  2. Step 2: Convert to fraction form
    104,875.32/144,727.20 = 57,128.52/x
  3. Step 3: Cross multiply
    104,875.32x = 144,727.20 × 57,128.52
  4. Step 4: Simplify right side
    104,875.32x = 8,268,050,739.74
  5. Step 5: Solve for x
    x = 8,268,050,739.74/104,875.32
  6. Step 6: Final answer
    x = 78,836.95

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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.