Home / 126,421.37-174,466.80-72,706.44

Finding the Fourth Proportional to 126,421.37, 174,466.80 and 72,706.44

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Solution

The fourth proportional to 126,421.37, 174,466.80 and 72,706.44 is: 100,337.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,421.37 : 174,466.80 = 72,706.44 : x
  2. Step 2: Convert to fraction form
    126,421.37/174,466.80 = 72,706.44/x
  3. Step 3: Cross multiply
    126,421.37x = 174,466.80 × 72,706.44
  4. Step 4: Simplify right side
    126,421.37x = 12,684,859,312.87
  5. Step 5: Solve for x
    x = 12,684,859,312.87/126,421.37
  6. Step 6: Final answer
    x = 100,337.93

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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.