Home / 132,605.57-182,999.55-72,180.12

Finding the Fourth Proportional to 132,605.57, 182,999.55 and 72,180.12

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Solution

The fourth proportional to 132,605.57, 182,999.55 and 72,180.12 is: 99,610.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,605.57 : 182,999.55 = 72,180.12 : x
  2. Step 2: Convert to fraction form
    132,605.57/182,999.55 = 72,180.12/x
  3. Step 3: Cross multiply
    132,605.57x = 182,999.55 × 72,180.12
  4. Step 4: Simplify right side
    132,605.57x = 13,208,929,478.95
  5. Step 5: Solve for x
    x = 13,208,929,478.95/132,605.57
  6. Step 6: Final answer
    x = 99,610.67

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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.