Home / 108,004.10-162,200.55-78,455.30

Finding the Fourth Proportional to 108,004.10, 162,200.55 and 78,455.30

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Solution

The fourth proportional to 108,004.10, 162,200.55 and 78,455.30 is: 117,824.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,004.10 : 162,200.55 = 78,455.30 : x
  2. Step 2: Convert to fraction form
    108,004.10/162,200.55 = 78,455.30/x
  3. Step 3: Cross multiply
    108,004.10x = 162,200.55 × 78,455.30
  4. Step 4: Simplify right side
    108,004.10x = 12,725,492,810.42
  5. Step 5: Solve for x
    x = 12,725,492,810.42/108,004.10
  6. Step 6: Final answer
    x = 117,824.16

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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.