Home / 126,421.07-174,466.16-72,706.07

Finding the Fourth Proportional to 126,421.07, 174,466.16 and 72,706.07

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Solution

The fourth proportional to 126,421.07, 174,466.16 and 72,706.07 is: 100,337.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,421.07 : 174,466.16 = 72,706.07 : x
  2. Step 2: Convert to fraction form
    126,421.07/174,466.16 = 72,706.07/x
  3. Step 3: Cross multiply
    126,421.07x = 174,466.16 × 72,706.07
  4. Step 4: Simplify right side
    126,421.07x = 12,684,747,605.73
  5. Step 5: Solve for x
    x = 12,684,747,605.73/126,421.07
  6. Step 6: Final answer
    x = 100,337.29

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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.