Home / 187,212.67-280,447.52-87,235.18

Finding the Fourth Proportional to 187,212.67, 280,447.52 and 87,235.18

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Solution

The fourth proportional to 187,212.67, 280,447.52 and 87,235.18 is: 130,679.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,212.67 : 280,447.52 = 87,235.18 : x
  2. Step 2: Convert to fraction form
    187,212.67/280,447.52 = 87,235.18/x
  3. Step 3: Cross multiply
    187,212.67x = 280,447.52 × 87,235.18
  4. Step 4: Simplify right side
    187,212.67x = 24,464,888,750.46
  5. Step 5: Solve for x
    x = 24,464,888,750.46/187,212.67
  6. Step 6: Final answer
    x = 130,679.67

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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.