Home / 132,615.80-183,013.64-72,190.36

Finding the Fourth Proportional to 132,615.80, 183,013.64 and 72,190.36

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Solution

The fourth proportional to 132,615.80, 183,013.64 and 72,190.36 is: 99,624.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,615.80 : 183,013.64 = 72,190.36 : x
  2. Step 2: Convert to fraction form
    132,615.80/183,013.64 = 72,190.36/x
  3. Step 3: Cross multiply
    132,615.80x = 183,013.64 × 72,190.36
  4. Step 4: Simplify right side
    132,615.80x = 13,211,820,556.51
  5. Step 5: Solve for x
    x = 13,211,820,556.51/132,615.80
  6. Step 6: Final answer
    x = 99,624.78

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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.