Home / 459,620.76-689,431.34-144,102.26

Finding the Fourth Proportional to 459,620.76, 689,431.34 and 144,102.26

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Solution

The fourth proportional to 459,620.76, 689,431.34 and 144,102.26 is: 216,153.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,620.76 : 689,431.34 = 144,102.26 : x
  2. Step 2: Convert to fraction form
    459,620.76/689,431.34 = 144,102.26/x
  3. Step 3: Cross multiply
    459,620.76x = 689,431.34 × 144,102.26
  4. Step 4: Simplify right side
    459,620.76x = 99,348,614,208.83
  5. Step 5: Solve for x
    x = 99,348,614,208.83/459,620.76
  6. Step 6: Final answer
    x = 216,153.45

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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.