Home / 209,139.19-288,609.17-116,002.08

Finding the Fourth Proportional to 209,139.19, 288,609.17 and 116,002.08

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Solution

The fourth proportional to 209,139.19, 288,609.17 and 116,002.08 is: 160,081.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,139.19 : 288,609.17 = 116,002.08 : x
  2. Step 2: Convert to fraction form
    209,139.19/288,609.17 = 116,002.08/x
  3. Step 3: Cross multiply
    209,139.19x = 288,609.17 × 116,002.08
  4. Step 4: Simplify right side
    209,139.19x = 33,479,264,317.08
  5. Step 5: Solve for x
    x = 33,479,264,317.08/209,139.19
  6. Step 6: Final answer
    x = 160,081.26

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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.