Home / 131,686.98-197,550.99-42,919.89

Finding the Fourth Proportional to 131,686.98, 197,550.99 and 42,919.89

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Solution

The fourth proportional to 131,686.98, 197,550.99 and 42,919.89 is: 64,386.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,686.98 : 197,550.99 = 42,919.89 : x
  2. Step 2: Convert to fraction form
    131,686.98/197,550.99 = 42,919.89/x
  3. Step 3: Cross multiply
    131,686.98x = 197,550.99 × 42,919.89
  4. Step 4: Simplify right side
    131,686.98x = 8,478,866,760.19
  5. Step 5: Solve for x
    x = 8,478,866,760.19/131,686.98
  6. Step 6: Final answer
    x = 64,386.52

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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.