Home / 152,161.43-209,945.05-98,381.74

Finding the Fourth Proportional to 152,161.43, 209,945.05 and 98,381.74

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Solution

The fourth proportional to 152,161.43, 209,945.05 and 98,381.74 is: 135,742.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,161.43 : 209,945.05 = 98,381.74 : x
  2. Step 2: Convert to fraction form
    152,161.43/209,945.05 = 98,381.74/x
  3. Step 3: Cross multiply
    152,161.43x = 209,945.05 × 98,381.74
  4. Step 4: Simplify right side
    152,161.43x = 20,654,758,150.68
  5. Step 5: Solve for x
    x = 20,654,758,150.68/152,161.43
  6. Step 6: Final answer
    x = 135,742.40

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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.