Home / 212,709.69-319,031.73-94,360.19

Finding the Fourth Proportional to 212,709.69, 319,031.73 and 94,360.19

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Solution

The fourth proportional to 212,709.69, 319,031.73 and 94,360.19 is: 141,525.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,709.69 : 319,031.73 = 94,360.19 : x
  2. Step 2: Convert to fraction form
    212,709.69/319,031.73 = 94,360.19/x
  3. Step 3: Cross multiply
    212,709.69x = 319,031.73 × 94,360.19
  4. Step 4: Simplify right side
    212,709.69x = 30,103,893,063.67
  5. Step 5: Solve for x
    x = 30,103,893,063.67/212,709.69
  6. Step 6: Final answer
    x = 141,525.72

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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.