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Finding the Fourth Proportional to 124,556.60, 186,834.90 and 123,390.20

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Solution

The fourth proportional to 124,556.60, 186,834.90 and 123,390.20 is: 185,085.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,556.60 : 186,834.90 = 123,390.20 : x
  2. Step 2: Convert to fraction form
    124,556.60/186,834.90 = 123,390.20/x
  3. Step 3: Cross multiply
    124,556.60x = 186,834.90 × 123,390.20
  4. Step 4: Simplify right side
    124,556.60x = 23,053,595,677.98
  5. Step 5: Solve for x
    x = 23,053,595,677.98/124,556.60
  6. Step 6: Final answer
    x = 185,085.30

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1.5x scale

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.