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Finding the Fourth Proportional to 125,117.13, 172,661.64 and 68,530.53

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Solution

The fourth proportional to 125,117.13, 172,661.64 and 68,530.53 is: 94,572.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,117.13 : 172,661.64 = 68,530.53 : x
  2. Step 2: Convert to fraction form
    125,117.13/172,661.64 = 68,530.53/x
  3. Step 3: Cross multiply
    125,117.13x = 172,661.64 × 68,530.53
  4. Step 4: Simplify right side
    125,117.13x = 11,832,593,699.87
  5. Step 5: Solve for x
    x = 11,832,593,699.87/125,117.13
  6. Step 6: Final answer
    x = 94,572.13

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