Home / 125,786.88-173,585.93-72,103.05

Finding the Fourth Proportional to 125,786.88, 173,585.93 and 72,103.05

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Solution

The fourth proportional to 125,786.88, 173,585.93 and 72,103.05 is: 99,502.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,786.88 : 173,585.93 = 72,103.05 : x
  2. Step 2: Convert to fraction form
    125,786.88/173,585.93 = 72,103.05/x
  3. Step 3: Cross multiply
    125,786.88x = 173,585.93 × 72,103.05
  4. Step 4: Simplify right side
    125,786.88x = 12,516,074,629.57
  5. Step 5: Solve for x
    x = 12,516,074,629.57/125,786.88
  6. Step 6: Final answer
    x = 99,502.23

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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.