Home / 125,815.19-173,629.73-72,110.57

Finding the Fourth Proportional to 125,815.19, 173,629.73 and 72,110.57

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Solution

The fourth proportional to 125,815.19, 173,629.73 and 72,110.57 is: 99,515.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,815.19 : 173,629.73 = 72,110.57 : x
  2. Step 2: Convert to fraction form
    125,815.19/173,629.73 = 72,110.57/x
  3. Step 3: Cross multiply
    125,815.19x = 173,629.73 × 72,110.57
  4. Step 4: Simplify right side
    125,815.19x = 12,520,538,111.37
  5. Step 5: Solve for x
    x = 12,520,538,111.37/125,815.19
  6. Step 6: Final answer
    x = 99,515.32

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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.