Home / 258,872.50-387,747.85-125,473.69

Finding the Fourth Proportional to 258,872.50, 387,747.85 and 125,473.69

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Solution

The fourth proportional to 258,872.50, 387,747.85 and 125,473.69 is: 187,938.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,872.50 : 387,747.85 = 125,473.69 : x
  2. Step 2: Convert to fraction form
    258,872.50/387,747.85 = 125,473.69/x
  3. Step 3: Cross multiply
    258,872.50x = 387,747.85 × 125,473.69
  4. Step 4: Simplify right side
    258,872.50x = 48,652,152,901.70
  5. Step 5: Solve for x
    x = 48,652,152,901.70/258,872.50
  6. Step 6: Final answer
    x = 187,938.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.