Home / 126,124.10-174,055.46-75,129.87

Finding the Fourth Proportional to 126,124.10, 174,055.46 and 75,129.87

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Solution

The fourth proportional to 126,124.10, 174,055.46 and 75,129.87 is: 103,681.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,124.10 : 174,055.46 = 75,129.87 : x
  2. Step 2: Convert to fraction form
    126,124.10/174,055.46 = 75,129.87/x
  3. Step 3: Cross multiply
    126,124.10x = 174,055.46 × 75,129.87
  4. Step 4: Simplify right side
    126,124.10x = 13,076,764,082.59
  5. Step 5: Solve for x
    x = 13,076,764,082.59/126,124.10
  6. Step 6: Final answer
    x = 103,681.72

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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.