Home / 141,172.80-194,818.79-77,514.70

Finding the Fourth Proportional to 141,172.80, 194,818.79 and 77,514.70

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Solution

The fourth proportional to 141,172.80, 194,818.79 and 77,514.70 is: 106,970.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,172.80 : 194,818.79 = 77,514.70 : x
  2. Step 2: Convert to fraction form
    141,172.80/194,818.79 = 77,514.70/x
  3. Step 3: Cross multiply
    141,172.80x = 194,818.79 × 77,514.70
  4. Step 4: Simplify right side
    141,172.80x = 15,101,319,767.95
  5. Step 5: Solve for x
    x = 15,101,319,767.95/141,172.80
  6. Step 6: Final answer
    x = 106,970.46

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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.