Home / 124,516.20-186,822.90-45,638.40

Finding the Fourth Proportional to 124,516.20, 186,822.90 and 45,638.40

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Solution

The fourth proportional to 124,516.20, 186,822.90 and 45,638.40 is: 68,475.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,516.20 : 186,822.90 = 45,638.40 : x
  2. Step 2: Convert to fraction form
    124,516.20/186,822.90 = 45,638.40/x
  3. Step 3: Cross multiply
    124,516.20x = 186,822.90 × 45,638.40
  4. Step 4: Simplify right side
    124,516.20x = 8,526,298,239.36
  5. Step 5: Solve for x
    x = 8,526,298,239.36/124,516.20
  6. Step 6: Final answer
    x = 68,475.41

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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.