Home / 125,834.39-173,658.60-72,128.33

Finding the Fourth Proportional to 125,834.39, 173,658.60 and 72,128.33

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Solution

The fourth proportional to 125,834.39, 173,658.60 and 72,128.33 is: 99,541.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,834.39 : 173,658.60 = 72,128.33 : x
  2. Step 2: Convert to fraction form
    125,834.39/173,658.60 = 72,128.33/x
  3. Step 3: Cross multiply
    125,834.39x = 173,658.60 × 72,128.33
  4. Step 4: Simplify right side
    125,834.39x = 12,525,703,939.85
  5. Step 5: Solve for x
    x = 12,525,703,939.85/125,834.39
  6. Step 6: Final answer
    x = 99,541.19

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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.