Home / 136,519.84-188,389.52-76,088.48

Finding the Fourth Proportional to 136,519.84, 188,389.52 and 76,088.48

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Solution

The fourth proportional to 136,519.84, 188,389.52 and 76,088.48 is: 104,997.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,519.84 : 188,389.52 = 76,088.48 : x
  2. Step 2: Convert to fraction form
    136,519.84/188,389.52 = 76,088.48/x
  3. Step 3: Cross multiply
    136,519.84x = 188,389.52 × 76,088.48
  4. Step 4: Simplify right side
    136,519.84x = 14,334,272,224.73
  5. Step 5: Solve for x
    x = 14,334,272,224.73/136,519.84
  6. Step 6: Final answer
    x = 104,997.72

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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.