Home / 231,213.83-346,848.57-81,423.18

Finding the Fourth Proportional to 231,213.83, 346,848.57 and 81,423.18

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Solution

The fourth proportional to 231,213.83, 346,848.57 and 81,423.18 is: 122,144.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,213.83 : 346,848.57 = 81,423.18 : x
  2. Step 2: Convert to fraction form
    231,213.83/346,848.57 = 81,423.18/x
  3. Step 3: Cross multiply
    231,213.83x = 346,848.57 × 81,423.18
  4. Step 4: Simplify right side
    231,213.83x = 28,241,513,547.85
  5. Step 5: Solve for x
    x = 28,241,513,547.85/231,213.83
  6. Step 6: Final answer
    x = 122,144.57

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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.