Home / 457,631.10-686,373.21-125,129.34

Finding the Fourth Proportional to 457,631.10, 686,373.21 and 125,129.34

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Solution

The fourth proportional to 457,631.10, 686,373.21 and 125,129.34 is: 187,673.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,631.10 : 686,373.21 = 125,129.34 : x
  2. Step 2: Convert to fraction form
    457,631.10/686,373.21 = 125,129.34/x
  3. Step 3: Cross multiply
    457,631.10x = 686,373.21 × 125,129.34
  4. Step 4: Simplify right side
    457,631.10x = 85,885,426,760.98
  5. Step 5: Solve for x
    x = 85,885,426,760.98/457,631.10
  6. Step 6: Final answer
    x = 187,673.93

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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.