Home / 209,614.43-289,259.21-118,968.75

Finding the Fourth Proportional to 209,614.43, 289,259.21 and 118,968.75

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Solution

The fourth proportional to 209,614.43, 289,259.21 and 118,968.75 is: 164,171.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,614.43 : 289,259.21 = 118,968.75 : x
  2. Step 2: Convert to fraction form
    209,614.43/289,259.21 = 118,968.75/x
  3. Step 3: Cross multiply
    209,614.43x = 289,259.21 × 118,968.75
  4. Step 4: Simplify right side
    209,614.43x = 34,412,806,937.11
  5. Step 5: Solve for x
    x = 34,412,806,937.11/209,614.43
  6. Step 6: Final answer
    x = 164,171.93

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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.