Home / 457,749.20-686,688.60-142,173.20

Finding the Fourth Proportional to 457,749.20, 686,688.60 and 142,173.20

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Solution

The fourth proportional to 457,749.20, 686,688.60 and 142,173.20 is: 213,279.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,749.20 : 686,688.60 = 142,173.20 : x
  2. Step 2: Convert to fraction form
    457,749.20/686,688.60 = 142,173.20/x
  3. Step 3: Cross multiply
    457,749.20x = 686,688.60 × 142,173.20
  4. Step 4: Simplify right side
    457,749.20x = 97,628,715,665.52
  5. Step 5: Solve for x
    x = 97,628,715,665.52/457,749.20
  6. Step 6: Final answer
    x = 213,279.93

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