Home / 126,299.10-174,355.83-78,567.96

Finding the Fourth Proportional to 126,299.10, 174,355.83 and 78,567.96

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Solution

The fourth proportional to 126,299.10, 174,355.83 and 78,567.96 is: 108,463.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,299.10 : 174,355.83 = 78,567.96 : x
  2. Step 2: Convert to fraction form
    126,299.10/174,355.83 = 78,567.96/x
  3. Step 3: Cross multiply
    126,299.10x = 174,355.83 × 78,567.96
  4. Step 4: Simplify right side
    126,299.10x = 13,698,781,877.21
  5. Step 5: Solve for x
    x = 13,698,781,877.21/126,299.10
  6. Step 6: Final answer
    x = 108,463.02

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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.