Home / 104,133.71-143,704.32-56,387.20

Finding the Fourth Proportional to 104,133.71, 143,704.32 and 56,387.20

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Solution

The fourth proportional to 104,133.71, 143,704.32 and 56,387.20 is: 77,814.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,133.71 : 143,704.32 = 56,387.20 : x
  2. Step 2: Convert to fraction form
    104,133.71/143,704.32 = 56,387.20/x
  3. Step 3: Cross multiply
    104,133.71x = 143,704.32 × 56,387.20
  4. Step 4: Simplify right side
    104,133.71x = 8,103,084,232.70
  5. Step 5: Solve for x
    x = 8,103,084,232.70/104,133.71
  6. Step 6: Final answer
    x = 77,814.23

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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.