Home / 113,220.45-156,204.37-67,913.10

Finding the Fourth Proportional to 113,220.45, 156,204.37 and 67,913.10

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Solution

The fourth proportional to 113,220.45, 156,204.37 and 67,913.10 is: 93,696.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,220.45 : 156,204.37 = 67,913.10 : x
  2. Step 2: Convert to fraction form
    113,220.45/156,204.37 = 67,913.10/x
  3. Step 3: Cross multiply
    113,220.45x = 156,204.37 × 67,913.10
  4. Step 4: Simplify right side
    113,220.45x = 10,608,323,000.25
  5. Step 5: Solve for x
    x = 10,608,323,000.25/113,220.45
  6. Step 6: Final answer
    x = 93,696.17

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1.5x scale

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.