Home / 121,115.50-180,898.06-109,700.36

Finding the Fourth Proportional to 121,115.50, 180,898.06 and 109,700.36

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Solution

The fourth proportional to 121,115.50, 180,898.06 and 109,700.36 is: 163,848.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,115.50 : 180,898.06 = 109,700.36 : x
  2. Step 2: Convert to fraction form
    121,115.50/180,898.06 = 109,700.36/x
  3. Step 3: Cross multiply
    121,115.50x = 180,898.06 × 109,700.36
  4. Step 4: Simplify right side
    121,115.50x = 19,844,582,305.30
  5. Step 5: Solve for x
    x = 19,844,582,305.30/121,115.50
  6. Step 6: Final answer
    x = 163,848.41

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.