Home / 209,134.77-288,605.21-118,507.98

Finding the Fourth Proportional to 209,134.77, 288,605.21 and 118,507.98

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Solution

The fourth proportional to 209,134.77, 288,605.21 and 118,507.98 is: 163,540.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,134.77 : 288,605.21 = 118,507.98 : x
  2. Step 2: Convert to fraction form
    209,134.77/288,605.21 = 118,507.98/x
  3. Step 3: Cross multiply
    209,134.77x = 288,605.21 × 118,507.98
  4. Step 4: Simplify right side
    209,134.77x = 34,202,020,454.58
  5. Step 5: Solve for x
    x = 34,202,020,454.58/209,134.77
  6. Step 6: Final answer
    x = 163,540.57

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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.