Home / 102,131.84-153,115.16-45,930.80

Finding the Fourth Proportional to 102,131.84, 153,115.16 and 45,930.80

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Solution

The fourth proportional to 102,131.84, 153,115.16 and 45,930.80 is: 68,859.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,131.84 : 153,115.16 = 45,930.80 : x
  2. Step 2: Convert to fraction form
    102,131.84/153,115.16 = 45,930.80/x
  3. Step 3: Cross multiply
    102,131.84x = 153,115.16 × 45,930.80
  4. Step 4: Simplify right side
    102,131.84x = 7,032,701,790.93
  5. Step 5: Solve for x
    x = 7,032,701,790.93/102,131.84
  6. Step 6: Final answer
    x = 68,859.05

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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.