Home / 132,615.66-183,009.44-72,186.12

Finding the Fourth Proportional to 132,615.66, 183,009.44 and 72,186.12

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Solution

The fourth proportional to 132,615.66, 183,009.44 and 72,186.12 is: 99,616.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,615.66 : 183,009.44 = 72,186.12 : x
  2. Step 2: Convert to fraction form
    132,615.66/183,009.44 = 72,186.12/x
  3. Step 3: Cross multiply
    132,615.66x = 183,009.44 × 72,186.12
  4. Step 4: Simplify right side
    132,615.66x = 13,210,741,577.44
  5. Step 5: Solve for x
    x = 13,210,741,577.44/132,615.66
  6. Step 6: Final answer
    x = 99,616.75

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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.