Home / 101,962.98-140,731.40-56,656.53

Finding the Fourth Proportional to 101,962.98, 140,731.40 and 56,656.53

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Solution

The fourth proportional to 101,962.98, 140,731.40 and 56,656.53 is: 78,198.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,962.98 : 140,731.40 = 56,656.53 : x
  2. Step 2: Convert to fraction form
    101,962.98/140,731.40 = 56,656.53/x
  3. Step 3: Cross multiply
    101,962.98x = 140,731.40 × 56,656.53
  4. Step 4: Simplify right side
    101,962.98x = 7,973,351,799.10
  5. Step 5: Solve for x
    x = 7,973,351,799.10/101,962.98
  6. Step 6: Final answer
    x = 78,198.50

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.