Home / 142,001.44-211,839.28-138,140.48

Finding the Fourth Proportional to 142,001.44, 211,839.28 and 138,140.48

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Solution

The fourth proportional to 142,001.44, 211,839.28 and 138,140.48 is: 206,079.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,001.44 : 211,839.28 = 138,140.48 : x
  2. Step 2: Convert to fraction form
    142,001.44/211,839.28 = 138,140.48/x
  3. Step 3: Cross multiply
    142,001.44x = 211,839.28 × 138,140.48
  4. Step 4: Simplify right side
    142,001.44x = 29,263,579,822.05
  5. Step 5: Solve for x
    x = 29,263,579,822.05/142,001.44
  6. Step 6: Final answer
    x = 206,079.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.