Home / 126,391.42-174,429.35-72,693.28

Finding the Fourth Proportional to 126,391.42, 174,429.35 and 72,693.28

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Solution

The fourth proportional to 126,391.42, 174,429.35 and 72,693.28 is: 100,322.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,391.42 : 174,429.35 = 72,693.28 : x
  2. Step 2: Convert to fraction form
    126,391.42/174,429.35 = 72,693.28/x
  3. Step 3: Cross multiply
    126,391.42x = 174,429.35 × 72,693.28
  4. Step 4: Simplify right side
    126,391.42x = 12,679,841,216.30
  5. Step 5: Solve for x
    x = 12,679,841,216.30/126,391.42
  6. Step 6: Final answer
    x = 100,322.01

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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.