Home / 129,943.80-178,922.70-110,780.82

Finding the Fourth Proportional to 129,943.80, 178,922.70 and 110,780.82

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Solution

The fourth proportional to 129,943.80, 178,922.70 and 110,780.82 is: 152,536.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,943.80 : 178,922.70 = 110,780.82 : x
  2. Step 2: Convert to fraction form
    129,943.80/178,922.70 = 110,780.82/x
  3. Step 3: Cross multiply
    129,943.80x = 178,922.70 × 110,780.82
  4. Step 4: Simplify right side
    129,943.80x = 19,821,203,422.61
  5. Step 5: Solve for x
    x = 19,821,203,422.61/129,943.80
  6. Step 6: Final answer
    x = 152,536.74

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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.