Home / 126,429.84-174,466.44-72,706.32

Finding the Fourth Proportional to 126,429.84, 174,466.44 and 72,706.32

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Solution

The fourth proportional to 126,429.84, 174,466.44 and 72,706.32 is: 100,330.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,429.84 : 174,466.44 = 72,706.32 : x
  2. Step 2: Convert to fraction form
    126,429.84/174,466.44 = 72,706.32/x
  3. Step 3: Cross multiply
    126,429.84x = 174,466.44 × 72,706.32
  4. Step 4: Simplify right side
    126,429.84x = 12,684,812,815.90
  5. Step 5: Solve for x
    x = 12,684,812,815.90/126,429.84
  6. Step 6: Final answer
    x = 100,330.85

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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.