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Finding the Fourth Proportional to 180,054.89, 248,480.77 and 99,487.61

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Solution

The fourth proportional to 180,054.89, 248,480.77 and 99,487.61 is: 137,295.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,054.89 : 248,480.77 = 99,487.61 : x
  2. Step 2: Convert to fraction form
    180,054.89/248,480.77 = 99,487.61/x
  3. Step 3: Cross multiply
    180,054.89x = 248,480.77 × 99,487.61
  4. Step 4: Simplify right side
    180,054.89x = 24,720,758,031.38
  5. Step 5: Solve for x
    x = 24,720,758,031.38/180,054.89
  6. Step 6: Final answer
    x = 137,295.67

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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.