Home / 121,869.80-182,804.70-102,624.20

Finding the Fourth Proportional to 121,869.80, 182,804.70 and 102,624.20

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Solution

The fourth proportional to 121,869.80, 182,804.70 and 102,624.20 is: 153,936.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,869.80 : 182,804.70 = 102,624.20 : x
  2. Step 2: Convert to fraction form
    121,869.80/182,804.70 = 102,624.20/x
  3. Step 3: Cross multiply
    121,869.80x = 182,804.70 × 102,624.20
  4. Step 4: Simplify right side
    121,869.80x = 18,760,186,093.74
  5. Step 5: Solve for x
    x = 18,760,186,093.74/121,869.80
  6. Step 6: Final answer
    x = 153,936.30

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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.