Home / 126,068.30-174,003.90-78,357.68

Finding the Fourth Proportional to 126,068.30, 174,003.90 and 78,357.68

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Solution

The fourth proportional to 126,068.30, 174,003.90 and 78,357.68 is: 108,152.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,068.30 : 174,003.90 = 78,357.68 : x
  2. Step 2: Convert to fraction form
    126,068.30/174,003.90 = 78,357.68/x
  3. Step 3: Cross multiply
    126,068.30x = 174,003.90 × 78,357.68
  4. Step 4: Simplify right side
    126,068.30x = 13,634,541,914.95
  5. Step 5: Solve for x
    x = 13,634,541,914.95/126,068.30
  6. Step 6: Final answer
    x = 108,152.02

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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.