Home / 101,731.08-140,390.58-56,410.98

Finding the Fourth Proportional to 101,731.08, 140,390.58 and 56,410.98

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Solution

The fourth proportional to 101,731.08, 140,390.58 and 56,410.98 is: 77,848.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,731.08 : 140,390.58 = 56,410.98 : x
  2. Step 2: Convert to fraction form
    101,731.08/140,390.58 = 56,410.98/x
  3. Step 3: Cross multiply
    101,731.08x = 140,390.58 × 56,410.98
  4. Step 4: Simplify right side
    101,731.08x = 7,919,569,885.64
  5. Step 5: Solve for x
    x = 7,919,569,885.64/101,731.08
  6. Step 6: Final answer
    x = 77,848.08

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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.