Home / 142,001.94-211,840.03-138,140.98

Finding the Fourth Proportional to 142,001.94, 211,840.03 and 138,140.98

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Solution

The fourth proportional to 142,001.94, 211,840.03 and 138,140.98 is: 206,080.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,001.94 : 211,840.03 = 138,140.98 : x
  2. Step 2: Convert to fraction form
    142,001.94/211,840.03 = 138,140.98/x
  3. Step 3: Cross multiply
    142,001.94x = 211,840.03 × 138,140.98
  4. Step 4: Simplify right side
    142,001.94x = 29,263,788,656.72
  5. Step 5: Solve for x
    x = 29,263,788,656.72/142,001.94
  6. Step 6: Final answer
    x = 206,080.20

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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.