Home / 141,213.87-194,803.09-90,172.94

Finding the Fourth Proportional to 141,213.87, 194,803.09 and 90,172.94

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Solution

The fourth proportional to 141,213.87, 194,803.09 and 90,172.94 is: 124,392.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,213.87 : 194,803.09 = 90,172.94 : x
  2. Step 2: Convert to fraction form
    141,213.87/194,803.09 = 90,172.94/x
  3. Step 3: Cross multiply
    141,213.87x = 194,803.09 × 90,172.94
  4. Step 4: Simplify right side
    141,213.87x = 17,565,966,146.94
  5. Step 5: Solve for x
    x = 17,565,966,146.94/141,213.87
  6. Step 6: Final answer
    x = 124,392.64

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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.