Home / 142,756.40-214,053.60-54,012.80

Finding the Fourth Proportional to 142,756.40, 214,053.60 and 54,012.80

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Solution

The fourth proportional to 142,756.40, 214,053.60 and 54,012.80 is: 80,988.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,756.40 : 214,053.60 = 54,012.80 : x
  2. Step 2: Convert to fraction form
    142,756.40/214,053.60 = 54,012.80/x
  3. Step 3: Cross multiply
    142,756.40x = 214,053.60 × 54,012.80
  4. Step 4: Simplify right side
    142,756.40x = 11,561,634,286.08
  5. Step 5: Solve for x
    x = 11,561,634,286.08/142,756.40
  6. Step 6: Final answer
    x = 80,988.55

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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.