Home / 134,289.90-185,310.99-76,929.45

Finding the Fourth Proportional to 134,289.90, 185,310.99 and 76,929.45

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Solution

The fourth proportional to 134,289.90, 185,310.99 and 76,929.45 is: 106,157.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,289.90 : 185,310.99 = 76,929.45 : x
  2. Step 2: Convert to fraction form
    134,289.90/185,310.99 = 76,929.45/x
  3. Step 3: Cross multiply
    134,289.90x = 185,310.99 × 76,929.45
  4. Step 4: Simplify right side
    134,289.90x = 14,255,871,844.74
  5. Step 5: Solve for x
    x = 14,255,871,844.74/134,289.90
  6. Step 6: Final answer
    x = 106,157.44

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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.