Home / 108,516.80-162,775.20-71,313.50

Finding the Fourth Proportional to 108,516.80, 162,775.20 and 71,313.50

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Solution

The fourth proportional to 108,516.80, 162,775.20 and 71,313.50 is: 106,970.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,516.80 : 162,775.20 = 71,313.50 : x
  2. Step 2: Convert to fraction form
    108,516.80/162,775.20 = 71,313.50/x
  3. Step 3: Cross multiply
    108,516.80x = 162,775.20 × 71,313.50
  4. Step 4: Simplify right side
    108,516.80x = 11,608,069,225.20
  5. Step 5: Solve for x
    x = 11,608,069,225.20/108,516.80
  6. Step 6: Final answer
    x = 106,970.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.