Home / 108,631.80-162,558.90-99,300.60

Finding the Fourth Proportional to 108,631.80, 162,558.90 and 99,300.60

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Solution

The fourth proportional to 108,631.80, 162,558.90 and 99,300.60 is: 148,595.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,631.80 : 162,558.90 = 99,300.60 : x
  2. Step 2: Convert to fraction form
    108,631.80/162,558.90 = 99,300.60/x
  3. Step 3: Cross multiply
    108,631.80x = 162,558.90 × 99,300.60
  4. Step 4: Simplify right side
    108,631.80x = 16,142,196,305.34
  5. Step 5: Solve for x
    x = 16,142,196,305.34/108,631.80
  6. Step 6: Final answer
    x = 148,595.50

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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.