Home / 123,169.16-169,973.55-66,580.53

Finding the Fourth Proportional to 123,169.16, 169,973.55 and 66,580.53

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Solution

The fourth proportional to 123,169.16, 169,973.55 and 66,580.53 is: 91,881.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,169.16 : 169,973.55 = 66,580.53 : x
  2. Step 2: Convert to fraction form
    123,169.16/169,973.55 = 66,580.53/x
  3. Step 3: Cross multiply
    123,169.16x = 169,973.55 × 66,580.53
  4. Step 4: Simplify right side
    123,169.16x = 11,316,929,044.98
  5. Step 5: Solve for x
    x = 11,316,929,044.98/123,169.16
  6. Step 6: Final answer
    x = 91,881.19

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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.