Home / 459,162.18-688,749.05-122,200.76

Finding the Fourth Proportional to 459,162.18, 688,749.05 and 122,200.76

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Solution

The fourth proportional to 459,162.18, 688,749.05 and 122,200.76 is: 183,302.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,162.18 : 688,749.05 = 122,200.76 : x
  2. Step 2: Convert to fraction form
    459,162.18/688,749.05 = 122,200.76/x
  3. Step 3: Cross multiply
    459,162.18x = 688,749.05 × 122,200.76
  4. Step 4: Simplify right side
    459,162.18x = 84,165,659,386.65
  5. Step 5: Solve for x
    x = 84,165,659,386.65/459,162.18
  6. Step 6: Final answer
    x = 183,302.68

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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.