Home / 333,837.50-500,756.88-81,118.20

Finding the Fourth Proportional to 333,837.50, 500,756.88 and 81,118.20

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Solution

The fourth proportional to 333,837.50, 500,756.88 and 81,118.20 is: 121,677.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    333,837.50 : 500,756.88 = 81,118.20 : x
  2. Step 2: Convert to fraction form
    333,837.50/500,756.88 = 81,118.20/x
  3. Step 3: Cross multiply
    333,837.50x = 500,756.88 × 81,118.20
  4. Step 4: Simplify right side
    333,837.50x = 40,620,496,743.22
  5. Step 5: Solve for x
    x = 40,620,496,743.22/333,837.50
  6. Step 6: Final answer
    x = 121,677.45

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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.