Home / 157,642,142.90-217,552,766.32-90,661,153.35

Finding the Fourth Proportional to 157,642,142.90, 217,552,766.32 and 90,661,153.35

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Solution

The fourth proportional to 157,642,142.90, 217,552,766.32 and 90,661,153.35 is: 125,116,192.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,642,142.90 : 217,552,766.32 = 90,661,153.35 : x
  2. Step 2: Convert to fraction form
    157,642,142.90/217,552,766.32 = 90,661,153.35/x
  3. Step 3: Cross multiply
    157,642,142.90x = 217,552,766.32 × 90,661,153.35
  4. Step 4: Simplify right side
    157,642,142.90x = 19,723,584,709,983,384
  5. Step 5: Solve for x
    x = 19,723,584,709,983,384/157,642,142.90
  6. Step 6: Final answer
    x = 125,116,192.58

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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.