Home / 105,027.48-144,936.45-57,280.82

Finding the Fourth Proportional to 105,027.48, 144,936.45 and 57,280.82

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Solution

The fourth proportional to 105,027.48, 144,936.45 and 57,280.82 is: 79,046.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,027.48 : 144,936.45 = 57,280.82 : x
  2. Step 2: Convert to fraction form
    105,027.48/144,936.45 = 57,280.82/x
  3. Step 3: Cross multiply
    105,027.48x = 144,936.45 × 57,280.82
  4. Step 4: Simplify right side
    105,027.48x = 8,302,077,979.21
  5. Step 5: Solve for x
    x = 8,302,077,979.21/105,027.48
  6. Step 6: Final answer
    x = 79,046.72

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1.5x scale

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.