Home / 108,285.89-162,319.75-45,140.94

Finding the Fourth Proportional to 108,285.89, 162,319.75 and 45,140.94

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Solution

The fourth proportional to 108,285.89, 162,319.75 and 45,140.94 is: 67,665.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,285.89 : 162,319.75 = 45,140.94 : x
  2. Step 2: Convert to fraction form
    108,285.89/162,319.75 = 45,140.94/x
  3. Step 3: Cross multiply
    108,285.89x = 162,319.75 × 45,140.94
  4. Step 4: Simplify right side
    108,285.89x = 7,327,266,095.57
  5. Step 5: Solve for x
    x = 7,327,266,095.57/108,285.89
  6. Step 6: Final answer
    x = 67,665.94

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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.