Home / 209,955.90-314,841.51-76,801.62

Finding the Fourth Proportional to 209,955.90, 314,841.51 and 76,801.62

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Solution

The fourth proportional to 209,955.90, 314,841.51 and 76,801.62 is: 115,168.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,955.90 : 314,841.51 = 76,801.62 : x
  2. Step 2: Convert to fraction form
    209,955.90/314,841.51 = 76,801.62/x
  3. Step 3: Cross multiply
    209,955.90x = 314,841.51 × 76,801.62
  4. Step 4: Simplify right side
    209,955.90x = 24,180,338,011.25
  5. Step 5: Solve for x
    x = 24,180,338,011.25/209,955.90
  6. Step 6: Final answer
    x = 115,168.65

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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.