Home / 123,666.31-170,819.68-91,466.38

Finding the Fourth Proportional to 123,666.31, 170,819.68 and 91,466.38

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Solution

The fourth proportional to 123,666.31, 170,819.68 and 91,466.38 is: 126,342.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,666.31 : 170,819.68 = 91,466.38 : x
  2. Step 2: Convert to fraction form
    123,666.31/170,819.68 = 91,466.38/x
  3. Step 3: Cross multiply
    123,666.31x = 170,819.68 × 91,466.38
  4. Step 4: Simplify right side
    123,666.31x = 15,624,257,762.36
  5. Step 5: Solve for x
    x = 15,624,257,762.36/123,666.31
  6. Step 6: Final answer
    x = 126,342.07

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1.5x scale

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.