Home / 209,681.12-289,363.28-114,187.75

Finding the Fourth Proportional to 209,681.12, 289,363.28 and 114,187.75

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Solution

The fourth proportional to 209,681.12, 289,363.28 and 114,187.75 is: 157,580.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,681.12 : 289,363.28 = 114,187.75 : x
  2. Step 2: Convert to fraction form
    209,681.12/289,363.28 = 114,187.75/x
  3. Step 3: Cross multiply
    209,681.12x = 289,363.28 × 114,187.75
  4. Step 4: Simplify right side
    209,681.12x = 33,041,740,581.47
  5. Step 5: Solve for x
    x = 33,041,740,581.47/209,681.12
  6. Step 6: Final answer
    x = 157,580.90

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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.