Home / 109,384.80-164,077.20-102,003.68

Finding the Fourth Proportional to 109,384.80, 164,077.20 and 102,003.68

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Solution

The fourth proportional to 109,384.80, 164,077.20 and 102,003.68 is: 153,005.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,384.80 : 164,077.20 = 102,003.68 : x
  2. Step 2: Convert to fraction form
    109,384.80/164,077.20 = 102,003.68/x
  3. Step 3: Cross multiply
    109,384.80x = 164,077.20 × 102,003.68
  4. Step 4: Simplify right side
    109,384.80x = 16,736,478,204.10
  5. Step 5: Solve for x
    x = 16,736,478,204.10/109,384.80
  6. Step 6: Final answer
    x = 153,005.52

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.