Home / 127,336.90-175,686.60-76,331.02

Finding the Fourth Proportional to 127,336.90, 175,686.60 and 76,331.02

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Solution

The fourth proportional to 127,336.90, 175,686.60 and 76,331.02 is: 105,313.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,336.90 : 175,686.60 = 76,331.02 : x
  2. Step 2: Convert to fraction form
    127,336.90/175,686.60 = 76,331.02/x
  3. Step 3: Cross multiply
    127,336.90x = 175,686.60 × 76,331.02
  4. Step 4: Simplify right side
    127,336.90x = 13,410,337,378.33
  5. Step 5: Solve for x
    x = 13,410,337,378.33/127,336.90
  6. Step 6: Final answer
    x = 105,313.84

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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.