Home / 131,317.56-197,037.88-64,721.36

Finding the Fourth Proportional to 131,317.56, 197,037.88 and 64,721.36

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Solution

The fourth proportional to 131,317.56, 197,037.88 and 64,721.36 is: 97,112.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,317.56 : 197,037.88 = 64,721.36 : x
  2. Step 2: Convert to fraction form
    131,317.56/197,037.88 = 64,721.36/x
  3. Step 3: Cross multiply
    131,317.56x = 197,037.88 × 64,721.36
  4. Step 4: Simplify right side
    131,317.56x = 12,752,559,895.91
  5. Step 5: Solve for x
    x = 12,752,559,895.91/131,317.56
  6. Step 6: Final answer
    x = 97,112.37

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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.