Home / 131,315.49-197,034.75-64,719.32

Finding the Fourth Proportional to 131,315.49, 197,034.75 and 64,719.32

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Solution

The fourth proportional to 131,315.49, 197,034.75 and 64,719.32 is: 97,109.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,315.49 : 197,034.75 = 64,719.32 : x
  2. Step 2: Convert to fraction form
    131,315.49/197,034.75 = 64,719.32/x
  3. Step 3: Cross multiply
    131,315.49x = 197,034.75 × 64,719.32
  4. Step 4: Simplify right side
    131,315.49x = 12,751,954,051.20
  5. Step 5: Solve for x
    x = 12,751,954,051.20/131,315.49
  6. Step 6: Final answer
    x = 97,109.29

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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.