Home / 457,683.24-686,516.22-142,133.16

Finding the Fourth Proportional to 457,683.24, 686,516.22 and 142,133.16

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Solution

The fourth proportional to 457,683.24, 686,516.22 and 142,133.16 is: 213,197.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,683.24 : 686,516.22 = 142,133.16 : x
  2. Step 2: Convert to fraction form
    457,683.24/686,516.22 = 142,133.16/x
  3. Step 3: Cross multiply
    457,683.24x = 686,516.22 × 142,133.16
  4. Step 4: Simplify right side
    457,683.24x = 97,576,719,739.86
  5. Step 5: Solve for x
    x = 97,576,719,739.86/457,683.24
  6. Step 6: Final answer
    x = 213,197.06

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.