Home / 108,429.03-162,829.67-66,555

Finding the Fourth Proportional to 108,429.03, 162,829.67 and 66,555

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Solution

The fourth proportional to 108,429.03, 162,829.67 and 66,555 is: 99,946.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,429.03 : 162,829.67 = 66,555 : x
  2. Step 2: Convert to fraction form
    108,429.03/162,829.67 = 66,555/x
  3. Step 3: Cross multiply
    108,429.03x = 162,829.67 × 66,555
  4. Step 4: Simplify right side
    108,429.03x = 10,837,128,354.08
  5. Step 5: Solve for x
    x = 10,837,128,354.08/108,429.03
  6. Step 6: Final answer
    x = 99,946.74

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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.