Home / 145,972.80-218,959.20-57,196.80

Finding the Fourth Proportional to 145,972.80, 218,959.20 and 57,196.80

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Solution

The fourth proportional to 145,972.80, 218,959.20 and 57,196.80 is: 85,795.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,972.80 : 218,959.20 = 57,196.80 : x
  2. Step 2: Convert to fraction form
    145,972.80/218,959.20 = 57,196.80/x
  3. Step 3: Cross multiply
    145,972.80x = 218,959.20 × 57,196.80
  4. Step 4: Simplify right side
    145,972.80x = 12,523,765,570.56
  5. Step 5: Solve for x
    x = 12,523,765,570.56/145,972.80
  6. Step 6: Final answer
    x = 85,795.20

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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.