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Finding the Fourth Proportional to 101,308.59, 139,804.97 and 55,989.63

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Solution

The fourth proportional to 101,308.59, 139,804.97 and 55,989.63 is: 77,265.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,308.59 : 139,804.97 = 55,989.63 : x
  2. Step 2: Convert to fraction form
    101,308.59/139,804.97 = 55,989.63/x
  3. Step 3: Cross multiply
    101,308.59x = 139,804.97 × 55,989.63
  4. Step 4: Simplify right side
    101,308.59x = 7,827,628,262.51
  5. Step 5: Solve for x
    x = 7,827,628,262.51/101,308.59
  6. Step 6: Final answer
    x = 77,265.20

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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.