Home / 126,089.46-173,996.37-78,342.39

Finding the Fourth Proportional to 126,089.46, 173,996.37 and 78,342.39

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Solution

The fourth proportional to 126,089.46, 173,996.37 and 78,342.39 is: 108,108.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,089.46 : 173,996.37 = 78,342.39 : x
  2. Step 2: Convert to fraction form
    126,089.46/173,996.37 = 78,342.39/x
  3. Step 3: Cross multiply
    126,089.46x = 173,996.37 × 78,342.39
  4. Step 4: Simplify right side
    126,089.46x = 13,631,291,477.12
  5. Step 5: Solve for x
    x = 13,631,291,477.12/126,089.46
  6. Step 6: Final answer
    x = 108,108.10

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1.5x scale

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.