Home / 132,629.61-183,023.26-72,199

Finding the Fourth Proportional to 132,629.61, 183,023.26 and 72,199

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Solution

The fourth proportional to 132,629.61, 183,023.26 and 72,199 is: 99,631.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,629.61 : 183,023.26 = 72,199 : x
  2. Step 2: Convert to fraction form
    132,629.61/183,023.26 = 72,199/x
  3. Step 3: Cross multiply
    132,629.61x = 183,023.26 × 72,199
  4. Step 4: Simplify right side
    132,629.61x = 13,214,096,348.74
  5. Step 5: Solve for x
    x = 13,214,096,348.74/132,629.61
  6. Step 6: Final answer
    x = 99,631.57

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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.