Home / 123,669.90-185,504.85-83,811.83

Finding the Fourth Proportional to 123,669.90, 185,504.85 and 83,811.83

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Solution

The fourth proportional to 123,669.90, 185,504.85 and 83,811.83 is: 125,717.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,669.90 : 185,504.85 = 83,811.83 : x
  2. Step 2: Convert to fraction form
    123,669.90/185,504.85 = 83,811.83/x
  3. Step 3: Cross multiply
    123,669.90x = 185,504.85 × 83,811.83
  4. Step 4: Simplify right side
    123,669.90x = 15,547,500,024.85
  5. Step 5: Solve for x
    x = 15,547,500,024.85/123,669.90
  6. Step 6: Final answer
    x = 125,717.74

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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.