Home / 126,343.64-174,425.14-87,637.84

Finding the Fourth Proportional to 126,343.64, 174,425.14 and 87,637.84

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Solution

The fourth proportional to 126,343.64, 174,425.14 and 87,637.84 is: 120,989.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,343.64 : 174,425.14 = 87,637.84 : x
  2. Step 2: Convert to fraction form
    126,343.64/174,425.14 = 87,637.84/x
  3. Step 3: Cross multiply
    126,343.64x = 174,425.14 × 87,637.84
  4. Step 4: Simplify right side
    126,343.64x = 15,286,242,511.30
  5. Step 5: Solve for x
    x = 15,286,242,511.30/126,343.64
  6. Step 6: Final answer
    x = 120,989.41

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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.