Home / 289,972.70-434,953.56-119,158.10

Finding the Fourth Proportional to 289,972.70, 434,953.56 and 119,158.10

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Solution

The fourth proportional to 289,972.70, 434,953.56 and 119,158.10 is: 178,734.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,972.70 : 434,953.56 = 119,158.10 : x
  2. Step 2: Convert to fraction form
    289,972.70/434,953.56 = 119,158.10/x
  3. Step 3: Cross multiply
    289,972.70x = 434,953.56 × 119,158.10
  4. Step 4: Simplify right side
    289,972.70x = 51,828,239,797.84
  5. Step 5: Solve for x
    x = 51,828,239,797.84/289,972.70
  6. Step 6: Final answer
    x = 178,734.89

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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.