Home / 126,537.65-174,613.65-72,814

Finding the Fourth Proportional to 126,537.65, 174,613.65 and 72,814

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Solution

The fourth proportional to 126,537.65, 174,613.65 and 72,814 is: 100,478.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,537.65 : 174,613.65 = 72,814 : x
  2. Step 2: Convert to fraction form
    126,537.65/174,613.65 = 72,814/x
  3. Step 3: Cross multiply
    126,537.65x = 174,613.65 × 72,814
  4. Step 4: Simplify right side
    126,537.65x = 12,714,318,311.10
  5. Step 5: Solve for x
    x = 12,714,318,311.10/126,537.65
  6. Step 6: Final answer
    x = 100,478.54

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.