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Finding the Fourth Proportional to 101,360.28, 139,866.48 and 56,030.96

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Solution

The fourth proportional to 101,360.28, 139,866.48 and 56,030.96 is: 77,316.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,360.28 : 139,866.48 = 56,030.96 : x
  2. Step 2: Convert to fraction form
    101,360.28/139,866.48 = 56,030.96/x
  3. Step 3: Cross multiply
    101,360.28x = 139,866.48 × 56,030.96
  4. Step 4: Simplify right side
    101,360.28x = 7,836,853,495.89
  5. Step 5: Solve for x
    x = 7,836,853,495.89/101,360.28
  6. Step 6: Final answer
    x = 77,316.81

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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.