Home / 459,043.30-688,510.17-122,108.61

Finding the Fourth Proportional to 459,043.30, 688,510.17 and 122,108.61

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Solution

The fourth proportional to 459,043.30, 688,510.17 and 122,108.61 is: 183,148.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,043.30 : 688,510.17 = 122,108.61 : x
  2. Step 2: Convert to fraction form
    459,043.30/688,510.17 = 122,108.61/x
  3. Step 3: Cross multiply
    459,043.30x = 688,510.17 × 122,108.61
  4. Step 4: Simplify right side
    459,043.30x = 84,073,019,829.56
  5. Step 5: Solve for x
    x = 84,073,019,829.56/459,043.30
  6. Step 6: Final answer
    x = 183,148.34

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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.