Home / 123,161.58-169,962.71-66,572.82

Finding the Fourth Proportional to 123,161.58, 169,962.71 and 66,572.82

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Solution

The fourth proportional to 123,161.58, 169,962.71 and 66,572.82 is: 91,870.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,161.58 : 169,962.71 = 66,572.82 : x
  2. Step 2: Convert to fraction form
    123,161.58/169,962.71 = 66,572.82/x
  3. Step 3: Cross multiply
    123,161.58x = 169,962.71 × 66,572.82
  4. Step 4: Simplify right side
    123,161.58x = 11,314,896,566.68
  5. Step 5: Solve for x
    x = 11,314,896,566.68/123,161.58
  6. Step 6: Final answer
    x = 91,870.34

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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.