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Finding the Fourth Proportional to 160,420.80, 240,112.80 and 125,169.60

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Solution

The fourth proportional to 160,420.80, 240,112.80 and 125,169.60 is: 187,349.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,420.80 : 240,112.80 = 125,169.60 : x
  2. Step 2: Convert to fraction form
    160,420.80/240,112.80 = 125,169.60/x
  3. Step 3: Cross multiply
    160,420.80x = 240,112.80 × 125,169.60
  4. Step 4: Simplify right side
    160,420.80x = 30,054,823,130.88
  5. Step 5: Solve for x
    x = 30,054,823,130.88/160,420.80
  6. Step 6: Final answer
    x = 187,349.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.