Home / 126,369.64-174,390.06-72,665.20

Finding the Fourth Proportional to 126,369.64, 174,390.06 and 72,665.20

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Solution

The fourth proportional to 126,369.64, 174,390.06 and 72,665.20 is: 100,277.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,369.64 : 174,390.06 = 72,665.20 : x
  2. Step 2: Convert to fraction form
    126,369.64/174,390.06 = 72,665.20/x
  3. Step 3: Cross multiply
    126,369.64x = 174,390.06 × 72,665.20
  4. Step 4: Simplify right side
    126,369.64x = 12,672,088,587.91
  5. Step 5: Solve for x
    x = 12,672,088,587.91/126,369.64
  6. Step 6: Final answer
    x = 100,277.95

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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.