Home / 125,458.39-173,133.21-71,745.67

Finding the Fourth Proportional to 125,458.39, 173,133.21 and 71,745.67

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Solution

The fourth proportional to 125,458.39, 173,133.21 and 71,745.67 is: 99,009.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,458.39 : 173,133.21 = 71,745.67 : x
  2. Step 2: Convert to fraction form
    125,458.39/173,133.21 = 71,745.67/x
  3. Step 3: Cross multiply
    125,458.39x = 173,133.21 × 71,745.67
  4. Step 4: Simplify right side
    125,458.39x = 12,421,558,150.70
  5. Step 5: Solve for x
    x = 12,421,558,150.70/125,458.39
  6. Step 6: Final answer
    x = 99,009.39

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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.