Home / 439,685.15-659,575.51-140,095.31

Finding the Fourth Proportional to 439,685.15, 659,575.51 and 140,095.31

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Solution

The fourth proportional to 439,685.15, 659,575.51 and 140,095.31 is: 210,158.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,685.15 : 659,575.51 = 140,095.31 : x
  2. Step 2: Convert to fraction form
    439,685.15/659,575.51 = 140,095.31/x
  3. Step 3: Cross multiply
    439,685.15x = 659,575.51 × 140,095.31
  4. Step 4: Simplify right side
    439,685.15x = 92,403,431,893.74
  5. Step 5: Solve for x
    x = 92,403,431,893.74/439,685.15
  6. Step 6: Final answer
    x = 210,158.18

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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.