Home / 168,747.40-253,412.70-90,015.40

Finding the Fourth Proportional to 168,747.40, 253,412.70 and 90,015.40

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Solution

The fourth proportional to 168,747.40, 253,412.70 and 90,015.40 is: 135,178.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,747.40 : 253,412.70 = 90,015.40 : x
  2. Step 2: Convert to fraction form
    168,747.40/253,412.70 = 90,015.40/x
  3. Step 3: Cross multiply
    168,747.40x = 253,412.70 × 90,015.40
  4. Step 4: Simplify right side
    168,747.40x = 22,811,045,555.58
  5. Step 5: Solve for x
    x = 22,811,045,555.58/168,747.40
  6. Step 6: Final answer
    x = 135,178.65

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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.