Home / 209,003.13-288,386.87-124,141.05

Finding the Fourth Proportional to 209,003.13, 288,386.87 and 124,141.05

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Solution

The fourth proportional to 209,003.13, 288,386.87 and 124,141.05 is: 171,292.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,003.13 : 288,386.87 = 124,141.05 : x
  2. Step 2: Convert to fraction form
    209,003.13/288,386.87 = 124,141.05/x
  3. Step 3: Cross multiply
    209,003.13x = 288,386.87 × 124,141.05
  4. Step 4: Simplify right side
    209,003.13x = 35,800,648,227.31
  5. Step 5: Solve for x
    x = 35,800,648,227.31/209,003.13
  6. Step 6: Final answer
    x = 171,292.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.