Home / 126,615.29-174,709.68-72,889.92

Finding the Fourth Proportional to 126,615.29, 174,709.68 and 72,889.92

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Solution

The fourth proportional to 126,615.29, 174,709.68 and 72,889.92 is: 100,576.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,615.29 : 174,709.68 = 72,889.92 : x
  2. Step 2: Convert to fraction form
    126,615.29/174,709.68 = 72,889.92/x
  3. Step 3: Cross multiply
    126,615.29x = 174,709.68 × 72,889.92
  4. Step 4: Simplify right side
    126,615.29x = 12,734,574,598.43
  5. Step 5: Solve for x
    x = 12,734,574,598.43/126,615.29
  6. Step 6: Final answer
    x = 100,576.91

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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.