Home / 124,143,112.88-171,317,496.80-69,138,969.38

Finding the Fourth Proportional to 124,143,112.88, 171,317,496.80 and 69,138,969.38

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Solution

The fourth proportional to 124,143,112.88, 171,317,496.80 and 69,138,969.38 is: 95,411,778.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,143,112.88 : 171,317,496.80 = 69,138,969.38 : x
  2. Step 2: Convert to fraction form
    124,143,112.88/171,317,496.80 = 69,138,969.38/x
  3. Step 3: Cross multiply
    124,143,112.88x = 171,317,496.80 × 69,138,969.38
  4. Step 4: Simplify right side
    124,143,112.88x = 11,844,715,165,513,448
  5. Step 5: Solve for x
    x = 11,844,715,165,513,448/124,143,112.88
  6. Step 6: Final answer
    x = 95,411,778.32

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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.