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Finding the Fourth Proportional to 101,348.66, 139,871.34 and 56,030.09

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Solution

The fourth proportional to 101,348.66, 139,871.34 and 56,030.09 is: 77,327.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,348.66 : 139,871.34 = 56,030.09 : x
  2. Step 2: Convert to fraction form
    101,348.66/139,871.34 = 56,030.09/x
  3. Step 3: Cross multiply
    101,348.66x = 139,871.34 × 56,030.09
  4. Step 4: Simplify right side
    101,348.66x = 7,837,003,069.26
  5. Step 5: Solve for x
    x = 7,837,003,069.26/101,348.66
  6. Step 6: Final answer
    x = 77,327.15

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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.