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Finding the Fourth Proportional to 101,360.63, 139,876.93 and 56,040.59

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Solution

The fourth proportional to 101,360.63, 139,876.93 and 56,040.59 is: 77,335.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,360.63 : 139,876.93 = 56,040.59 : x
  2. Step 2: Convert to fraction form
    101,360.63/139,876.93 = 56,040.59/x
  3. Step 3: Cross multiply
    101,360.63x = 139,876.93 × 56,040.59
  4. Step 4: Simplify right side
    101,360.63x = 7,838,785,684.59
  5. Step 5: Solve for x
    x = 7,838,785,684.59/101,360.63
  6. Step 6: Final answer
    x = 77,335.61

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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.