Home / 137,108.15-205,666.78-47,149.98

Finding the Fourth Proportional to 137,108.15, 205,666.78 and 47,149.98

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Solution

The fourth proportional to 137,108.15, 205,666.78 and 47,149.98 is: 70,726.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,108.15 : 205,666.78 = 47,149.98 : x
  2. Step 2: Convert to fraction form
    137,108.15/205,666.78 = 47,149.98/x
  3. Step 3: Cross multiply
    137,108.15x = 205,666.78 × 47,149.98
  4. Step 4: Simplify right side
    137,108.15x = 9,697,185,201.04
  5. Step 5: Solve for x
    x = 9,697,185,201.04/137,108.15
  6. Step 6: Final answer
    x = 70,726.54

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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.