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Finding the Fourth Proportional to 114,586.40, 172,009.20 and 88,407.20

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Solution

The fourth proportional to 114,586.40, 172,009.20 and 88,407.20 is: 132,710.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,586.40 : 172,009.20 = 88,407.20 : x
  2. Step 2: Convert to fraction form
    114,586.40/172,009.20 = 88,407.20/x
  3. Step 3: Cross multiply
    114,586.40x = 172,009.20 × 88,407.20
  4. Step 4: Simplify right side
    114,586.40x = 15,206,851,746.24
  5. Step 5: Solve for x
    x = 15,206,851,746.24/114,586.40
  6. Step 6: Final answer
    x = 132,710.79

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