Home / 209,985.80-289,773.18-119,340.18

Finding the Fourth Proportional to 209,985.80, 289,773.18 and 119,340.18

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Solution

The fourth proportional to 209,985.80, 289,773.18 and 119,340.18 is: 164,685.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,985.80 : 289,773.18 = 119,340.18 : x
  2. Step 2: Convert to fraction form
    209,985.80/289,773.18 = 119,340.18/x
  3. Step 3: Cross multiply
    209,985.80x = 289,773.18 × 119,340.18
  4. Step 4: Simplify right side
    209,985.80x = 34,581,583,460.37
  5. Step 5: Solve for x
    x = 34,581,583,460.37/209,985.80
  6. Step 6: Final answer
    x = 164,685.35

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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.