Home / 209,274.17-288,810.16-113,778.81

Finding the Fourth Proportional to 209,274.17, 288,810.16 and 113,778.81

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Solution

The fourth proportional to 209,274.17, 288,810.16 and 113,778.81 is: 157,021.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,274.17 : 288,810.16 = 113,778.81 : x
  2. Step 2: Convert to fraction form
    209,274.17/288,810.16 = 113,778.81/x
  3. Step 3: Cross multiply
    209,274.17x = 288,810.16 × 113,778.81
  4. Step 4: Simplify right side
    209,274.17x = 32,860,476,036.26
  5. Step 5: Solve for x
    x = 32,860,476,036.26/209,274.17
  6. Step 6: Final answer
    x = 157,021.18

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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.