Home / 209,623.74-289,266.17-118,981.56

Finding the Fourth Proportional to 209,623.74, 289,266.17 and 118,981.56

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Solution

The fourth proportional to 209,623.74, 289,266.17 and 118,981.56 is: 164,186.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,623.74 : 289,266.17 = 118,981.56 : x
  2. Step 2: Convert to fraction form
    209,623.74/289,266.17 = 118,981.56/x
  3. Step 3: Cross multiply
    209,623.74x = 289,266.17 × 118,981.56
  4. Step 4: Simplify right side
    209,623.74x = 34,417,340,161.83
  5. Step 5: Solve for x
    x = 34,417,340,161.83/209,623.74
  6. Step 6: Final answer
    x = 164,186.27

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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.