Home / 108,638.08-162,957.84-42,085.60

Finding the Fourth Proportional to 108,638.08, 162,957.84 and 42,085.60

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Solution

The fourth proportional to 108,638.08, 162,957.84 and 42,085.60 is: 63,128.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,638.08 : 162,957.84 = 42,085.60 : x
  2. Step 2: Convert to fraction form
    108,638.08/162,957.84 = 42,085.60/x
  3. Step 3: Cross multiply
    108,638.08x = 162,957.84 × 42,085.60
  4. Step 4: Simplify right side
    108,638.08x = 6,858,178,471.10
  5. Step 5: Solve for x
    x = 6,858,178,471.10/108,638.08
  6. Step 6: Final answer
    x = 63,128.68

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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.