Home / 209,772.50-289,488.04-119,130.36

Finding the Fourth Proportional to 209,772.50, 289,488.04 and 119,130.36

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Solution

The fourth proportional to 209,772.50, 289,488.04 and 119,130.36 is: 164,401.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,772.50 : 289,488.04 = 119,130.36 : x
  2. Step 2: Convert to fraction form
    209,772.50/289,488.04 = 119,130.36/x
  3. Step 3: Cross multiply
    209,772.50x = 289,488.04 × 119,130.36
  4. Step 4: Simplify right side
    209,772.50x = 34,486,814,420.89
  5. Step 5: Solve for x
    x = 34,486,814,420.89/209,772.50
  6. Step 6: Final answer
    x = 164,401.03

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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.