Home / 104,875.94-144,728.55-57,129.17

Finding the Fourth Proportional to 104,875.94, 144,728.55 and 57,129.17

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Solution

The fourth proportional to 104,875.94, 144,728.55 and 57,129.17 is: 78,838.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,875.94 : 144,728.55 = 57,129.17 : x
  2. Step 2: Convert to fraction form
    104,875.94/144,728.55 = 57,129.17/x
  3. Step 3: Cross multiply
    104,875.94x = 144,728.55 × 57,129.17
  4. Step 4: Simplify right side
    104,875.94x = 8,268,221,213.16
  5. Step 5: Solve for x
    x = 8,268,221,213.16/104,875.94
  6. Step 6: Final answer
    x = 78,838.12

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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.