Home / 180,212.15-248,679.68-99,640.67

Finding the Fourth Proportional to 180,212.15, 248,679.68 and 99,640.67

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Solution

The fourth proportional to 180,212.15, 248,679.68 and 99,640.67 is: 137,496.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,212.15 : 248,679.68 = 99,640.67 : x
  2. Step 2: Convert to fraction form
    180,212.15/248,679.68 = 99,640.67/x
  3. Step 3: Cross multiply
    180,212.15x = 248,679.68 × 99,640.67
  4. Step 4: Simplify right side
    180,212.15x = 24,778,609,432.38
  5. Step 5: Solve for x
    x = 24,778,609,432.38/180,212.15
  6. Step 6: Final answer
    x = 137,496.89

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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.