Home / 126,405.06-174,438.89-69,816.45

Finding the Fourth Proportional to 126,405.06, 174,438.89 and 69,816.45

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Solution

The fourth proportional to 126,405.06, 174,438.89 and 69,816.45 is: 96,346.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,405.06 : 174,438.89 = 69,816.45 : x
  2. Step 2: Convert to fraction form
    126,405.06/174,438.89 = 69,816.45/x
  3. Step 3: Cross multiply
    126,405.06x = 174,438.89 × 69,816.45
  4. Step 4: Simplify right side
    126,405.06x = 12,178,703,692.66
  5. Step 5: Solve for x
    x = 12,178,703,692.66/126,405.06
  6. Step 6: Final answer
    x = 96,346.65

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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.