Home / 114,929.76-158,513.20-74,656.49

Finding the Fourth Proportional to 114,929.76, 158,513.20 and 74,656.49

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Solution

The fourth proportional to 114,929.76, 158,513.20 and 74,656.49 is: 102,967.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,929.76 : 158,513.20 = 74,656.49 : x
  2. Step 2: Convert to fraction form
    114,929.76/158,513.20 = 74,656.49/x
  3. Step 3: Cross multiply
    114,929.76x = 158,513.20 × 74,656.49
  4. Step 4: Simplify right side
    114,929.76x = 11,834,038,757.39
  5. Step 5: Solve for x
    x = 11,834,038,757.39/114,929.76
  6. Step 6: Final answer
    x = 102,967.58

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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.