Home / 124,638.10-186,935.55-45,711.70

Finding the Fourth Proportional to 124,638.10, 186,935.55 and 45,711.70

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Solution

The fourth proportional to 124,638.10, 186,935.55 and 45,711.70 is: 68,559.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,638.10 : 186,935.55 = 45,711.70 : x
  2. Step 2: Convert to fraction form
    124,638.10/186,935.55 = 45,711.70/x
  3. Step 3: Cross multiply
    124,638.10x = 186,935.55 × 45,711.70
  4. Step 4: Simplify right side
    124,638.10x = 8,545,141,780.94
  5. Step 5: Solve for x
    x = 8,545,141,780.94/124,638.10
  6. Step 6: Final answer
    x = 68,559.63

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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.