Home / 123,154.92-169,953.80-66,566.28

Finding the Fourth Proportional to 123,154.92, 169,953.80 and 66,566.28

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Solution

The fourth proportional to 123,154.92, 169,953.80 and 66,566.28 is: 91,861.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,154.92 : 169,953.80 = 66,566.28 : x
  2. Step 2: Convert to fraction form
    123,154.92/169,953.80 = 66,566.28/x
  3. Step 3: Cross multiply
    123,154.92x = 169,953.80 × 66,566.28
  4. Step 4: Simplify right side
    123,154.92x = 11,313,192,237.86
  5. Step 5: Solve for x
    x = 11,313,192,237.86/123,154.92
  6. Step 6: Final answer
    x = 91,861.47

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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.